Statistical Description Of Data

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  • 1/72 Questions

    Statistics is applied in 

    • Economics
    • Business management
    • Commerce and industry
    • All these
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About This Quiz

Explore basic concepts of statistics, including definitions, applications, and analysis of data types. Understand attributes, variables, and the origins of statistical terms. Essential for learners aiming to grasp statistical data handling.

Statistics Quizzes & Trivia

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  • 2. 

    The UCL is 

    • An upper limit to UCL

    • A lower limit to LCL

    • Both(a)and(b)

    • (a)or(b)

    Correct Answer
    A. An upper limit to UCL
    Explanation
    The UCL (Upper Control Limit) is a statistical measure that represents the highest acceptable value or limit for a process. It is used in quality control to determine if a process is within acceptable limits or if it is experiencing excessive variation. Therefore, the correct answer is "An upper limit to UCL" as it accurately describes the role and purpose of the UCL in statistical analysis.

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  • 3. 

    Some important sources of secondary data are

    • International and Government sources

    • International and primary sources

    • Private and primary sources

    • Government sources

    Correct Answer
    A. International and Government sources
    Explanation
    Secondary data refers to data that has been collected by someone else for a different purpose. International and government sources are important sources of secondary data because they provide data that is collected at a global or national level. These sources often have extensive databases and research reports that can be accessed by researchers and analysts. This data can be used to gain insights into various aspects such as economics, demographics, social trends, and more. International sources include organizations like the United Nations, World Bank, and World Health Organization, while government sources refer to data collected by government agencies at the local, regional, or national level.

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  • 4. 

    The primary data are collected by 

    • Interview method

    • Observation method

    • Questionnaire method

    • All these

    Correct Answer
    A. All these
    Explanation
    The correct answer is "All these" because primary data can be collected through various methods such as interviews, observations, and questionnaires. Each method has its own advantages and disadvantages, and researchers often use a combination of these methods to gather comprehensive and reliable data. Therefore, the statement "All these" correctly acknowledges that primary data can be collected through any of these methods.

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  • 5. 

    The amount of non-responses is maximum in 

    • Mailed questionnaire method

    • Interview method

    • Observation method

    • All these

    Correct Answer
    A. Mailed questionnaire method
    Explanation
    The amount of non-responses is maximum in the mailed questionnaire method. This is because when questionnaires are sent by mail, there is no direct interaction between the researcher and the respondent. This lack of personal contact may result in a lower response rate as compared to other methods. Respondents may choose not to fill out the questionnaire or may simply forget to do so. Additionally, there is no opportunity for the researcher to clarify any doubts or provide further explanations, which may further contribute to non-responses.

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  • 6. 

    The mode of presentation of data are

    • Textual, tabulation and diagrammatic

    • Tabular, internal and external

    • Textual, tabular and internal

    • Tabular, textual and external

    Correct Answer
    A. Textual, tabulation and diagrammatic
    Explanation
    The question is asking about the different modes of presenting data. The correct answer states that the modes of presentation are textual, tabulation, and diagrammatic. This means that data can be presented in the form of written text, tables, and diagrams. These different modes allow for different ways of organizing and representing data, depending on the purpose and audience of the presentation.

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  • 7. 

    Find the number of observations between 250 and 300 from the following data :  Value More than 200 More than 250 More than 300 More than 350 No.of observations 56 38 15 0  

    • 56

    • 23

    • 15

    • 8

    Correct Answer
    A. 23
    Explanation
    The given data represents the number of observations for different ranges of values. The question asks for the number of observations between 250 and 300. From the data, we can see that there are 38 observations for values more than 250 and 15 observations for values more than 300. Therefore, the number of observations between 250 and 300 would be the difference between these two values, which is 38 - 15 = 23.

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  • 8. 

    In tabulation source of the data, if any, is shown in the 

    • Footnote

    • Body

    • Stub

    • Caption

    Correct Answer
    A. Footnote
    Explanation
    The correct answer is "Footnote." In tabulation, the source of the data is typically shown in the footnote. This is where additional information or references are provided to give credit or context to the data presented in the table. The footnote is usually placed at the bottom of the table and is numbered or marked with symbols to link it to specific data points or tables.

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  • 9. 

    The most accurate mode of data presentation is

    • Diagrammatic method

    • Tabulation

    • Textual presentation

    • None of these

    Correct Answer
    A. Tabulation
    Explanation
    Tabulation is the most accurate mode of data presentation because it organizes data in a systematic and structured manner, making it easier to analyze and interpret. It involves the use of tables, which provide a clear and concise summary of the data. Tabulation allows for easy comparison and identification of patterns, trends, and relationships within the data. It also enables the presentation of large amounts of data in a compact and organized format, making it more comprehensible and accessible to the reader.

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  • 10. 

    Statistics is concerned with 

    • Qualitative information

    • Quantitative information

    • (a)or(b)

    • Both (a) and (b)

    Correct Answer
    A. Both (a) and (b)
    Explanation
    Statistics is concerned with both qualitative and quantitative information. Qualitative information refers to non-numerical data that describes qualities or characteristics, such as opinions, preferences, or observations. Quantitative information, on the other hand, involves numerical data that can be measured or counted, such as quantities, amounts, or statistics. Statistics uses both types of information to analyze and interpret data, make predictions, and draw conclusions.

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  • 11. 

    Diagrammatic representation of data is done by

    • Diagrams

    • Charts

    • Pictures

    • All these

    Correct Answer
    A. All these
    Explanation
    The correct answer is "All these" because diagrammatic representation of data can be done using diagrams, charts, and pictures. All of these methods visually present data in a way that is easy to understand and analyze.

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  • 12. 

    In a study about the male and female students of commerce and science departments of a college in 5 years, the following datas were obtained : 1995 2000 70% male students 75% male students 65% read commerce 40%read science 20% of female students read Science 50% of male students read commerce 3000 total No.of students 3600 total No.of students  After combining 1995 and 2000 if x denotes the ratio of female commerce student I female Science student and y denotes the ratio of male commerce student to male Science student, then

    • X=y

    • X>y

    • X

    • X>=y

    Correct Answer
    A. X>y
    Explanation
    In 1995, 65% of the students read commerce and 20% of female students read science. In 2000, 40% of the students read science and 50% of male students read commerce. This means that the percentage of female students reading science decreased while the percentage of male students reading commerce increased. Therefore, the ratio of female commerce students to female science students (x) is greater than the ratio of male commerce students to male science students (y). Hence, the answer is x > y.

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  • 13. 

    Which method of data collection covers the widest area?

    • Telephone interview method

    • Mailed questionnaire method

    • Direct interview method

    • All these

    Correct Answer
    A. Mailed questionnaire method
    Explanation
    The mailed questionnaire method covers the widest area among the given options. This method involves sending questionnaires to a large number of respondents through mail, allowing for a broader geographic reach compared to methods like telephone or direct interviews. With the mailed questionnaire method, researchers can collect data from individuals across different locations, making it a suitable choice for studies that require a wide representation of respondents.

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  • 14. 

    Which of the following statements is false?

    • Statistics is derived from the Latin word 'Status'

    • Statistics is derived from the Italian word 'Statista'

    • Statistics is derived from the French word 'Statistik'

    • None of these.

    Correct Answer
    A. Statistics is derived from the French word 'Statistik'
    Explanation
    The given correct answer is "Statistics is derived from the French word 'Statistik'". However, this statement is false because statistics is not derived from the French word 'Statistik'. The word 'statistics' is actually derived from the Latin word 'Status', which means "state" or "status".

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  • 15. 

    The entire upper part of a table is known as

    • Caption

    • Stub

    • Box head

    • Body

    Correct Answer
    A. Box head
    Explanation
    The upper part of a table is commonly referred to as the "box head." This section usually contains the table's title or caption and any additional information or labels that are necessary for understanding the data in the table. The box head is located above the body of the table and provides an overview or summary of the information presented in the table.

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  • 16. 

    Data collected on religion from the census reports are

    • Primary data

    • Secondary data

    • Sample data

    • (a) or (b)

    Correct Answer
    A. Secondary data
    Explanation
    The data collected on religion from the census reports is considered secondary data. This is because the census reports are already existing sources of information that have been collected by a third party (government or statistical agencies) for a different purpose. The data is not collected directly by the researcher for their specific study or research question.

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  • 17. 

    The number of accidents for seven days in a locality are given below :  No.of accidents 0 1 2 3 4 5 6 Frequency 15 19 22 31 9 3 2  What is the number of cases when 3 or less accidents occurred?

    • 56

    • 6

    • 68

    • 87

    Correct Answer
    A. 87
    Explanation
    The number of cases when 3 or less accidents occurred can be calculated by adding up the frequencies for the number of accidents 0, 1, 2, and 3. In this case, the frequencies for these numbers are 15, 19, 22, and 31 respectively. Adding them up, we get 87, which is the correct answer.

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  • 18. 

    Annual income of a person is

    • An attribute

    • A discrete variable

    • A continuous variable

    • (b)or(c)

    Correct Answer
    A. A discrete variable
    Explanation
    The annual income of a person can be considered a discrete variable because it can only take on specific, distinct values. It cannot be measured or divided into smaller units. For example, someone's annual income can be $50,000, $60,000, or $70,000, but it cannot be $55,000. Therefore, it falls into the category of a discrete variable.

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  • 19. 

    Drinking habit of a person is 

    • An attribute

    • A variable

    • A discrete variable

    • A continuous variable

    Correct Answer
    A. An attribute
    Explanation
    The drinking habit of a person is considered an attribute because it is a characteristic or quality that describes the person. It is not a variable because it does not vary or change over time. It is also not a discrete or continuous variable because it cannot be measured or quantified in a numerical form. Instead, it is a qualitative characteristic that helps define and distinguish individuals.

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  • 20. 

    The unit of measurement in tabulation is shown in 

    • Box head

    • Body

    • Caption

    • Stub

    Correct Answer
    A. Box head
    Explanation
    In tabulation, the unit of measurement is shown in the Box head. The Box head is the topmost part of a table or chart that contains the labels or headings for each column. It provides a clear and concise representation of the units being measured in the tabulation.

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  • 21. 

    Multiple line chart is applied for

    • Showing multiple charts

    • Two or more related time series when the variables are expressed in the same unit

    • Two or more related time series when the variables are expressed in different unit

    • Multiple variations in the time series

    Correct Answer
    A. Two or more related time series when the variables are expressed in the same unit
    Explanation
    A multiple line chart is used to display two or more related time series when the variables are expressed in the same unit. This type of chart is effective in comparing the trends and patterns of different variables over time. By using multiple lines, it becomes easier to visualize and analyze the relationships between the variables. This chart is particularly useful when the variables being compared are measured on the same scale or have similar units of measurement, allowing for a meaningful comparison between them.

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  • 22. 

    Relative frequency for a particular class

    • Lies between 0 and 1

    • Lies between 0 and 1, both inclusive

    • Lies between -1 and 0

    • Lies between -1 to 1

    Correct Answer
    A. Lies between 0 and 1
    Explanation
    The relative frequency for a particular class represents the proportion of times that class occurs in relation to the total number of occurrences. Since it is a proportion, it must be expressed as a fraction or decimal between 0 and 1. It cannot be negative or greater than 1 because it represents a fraction of the whole. Therefore, the correct answer is "Lies between 0 and 1".

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  • 23. 

    In case of a rail accident, the appropriate method of data collection is by 

    • Personal interview

    • Direct interview

    • Indirect interview

    • All these

    Correct Answer
    A. Indirect interview
    Explanation
    Indirect interview is the appropriate method of data collection in case of a rail accident. This method involves gathering information from individuals who have knowledge or experience related to the accident, but without directly interviewing them. This could include reviewing documents, reports, and other sources of information to gather relevant data. Indirect interviews help in obtaining accurate and reliable information about the accident without directly involving the individuals who were directly affected or involved in the incident.

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  • 24. 

    Nationality of a student is 

    • An attribute

    • A continuous variable

    • A discrete variable

    • (a)or(c).

    Correct Answer
    A. An attribute
    Explanation
    Nationality of a student is considered as an attribute because it is a characteristic or quality that describes the student. It is not a continuous variable because it cannot be measured on a continuous scale, and it is not a discrete variable because it does not have distinct numerical values.

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  • 25. 

    An attribute is 

    • A qualitative characteristic

    • A quantitative characteristic

    • A measurable characteristic

    • All these

    Correct Answer
    A. A qualitative characteristic
    Explanation
    An attribute is a qualitative characteristic because it describes the quality or nature of something rather than its quantity or measurability.

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  • 26. 

    For a particular class boundary, the less than cumulative frequency and more than cumulative frequency add up to

    • Total frequency

    • Fifty per cent of the total frequency

    • (a) or (b)

    • None of these

    Correct Answer
    A. Total frequency
    Explanation
    The less than cumulative frequency represents the total number of data points that are less than the class boundary, while the more than cumulative frequency represents the total number of data points that are greater than the class boundary. Therefore, when we add these two frequencies together, we are considering all the data points in the dataset. Hence, the sum of the less than cumulative frequency and the more than cumulative frequency is equal to the total frequency.

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  • 27. 

    Statistics is defined in terms of numerical data in the 

    • Singular sense

    • Plural sense

    • Either (a) or (b)

    • Both (a) and (b)

    Correct Answer
    A. Plural sense
    Explanation
    Statistics is defined in terms of numerical data in the plural sense because it involves the collection, analysis, interpretation, presentation, and organization of a large set of data. It deals with the study of data from a population or sample, and aims to provide insights and make inferences about the characteristics and patterns within the data. Therefore, statistics is concerned with multiple data points rather than just a single data point, hence the need for the plural sense.

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  • 28. 

    Divided bar chart is considered for

    • Comparing different components of a variable

    • The relation of different components to the table

    • (a)or(b)

    • (a) and (b)

    Correct Answer
    A. (a) and (b)
    Explanation
    A divided bar chart is used to compare different components of a variable, as well as show the relationship of these components to the overall total. It allows for a visual representation of how each component contributes to the whole, making it easier to analyze and understand the data. Therefore, the correct answer is (a) and (b), as both statements accurately describe the purpose of a divided bar chart.

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  • 29. 

    The quickest method to collect primary data is

    • Personal interview

    • Indirect interview

    • Telephone interview

    • By observation

    Correct Answer
    A. Telephone interview
    Explanation
    The quickest method to collect primary data is a telephone interview. This is because it allows for immediate communication and eliminates the need for travel or scheduling conflicts. With a telephone interview, researchers can quickly gather information from respondents by asking questions and recording their responses in real-time. This method is particularly useful when time is limited and when face-to-face interaction is not necessary.

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  • 30. 

    The most attractive method of data presentation is

    • Tabular

    • Textual

    • Diagrammatic

    • (a)or(b).

    Correct Answer
    A. Diagrammatic
    Explanation
    The most attractive method of data presentation is diagrammatic. Diagrams are visually appealing and can effectively convey information in a concise and understandable manner. They allow for the representation of complex data sets and relationships, making it easier for the audience to interpret and analyze the information being presented. Additionally, diagrams can be customized and visually enhanced to make the data more engaging and visually appealing to the viewers.

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  • 31. 

    For tabulation, 'caption' is

    • The upper part of the table

    • The lower part of the table

    • The main part of the table

    • The upper part of a table that describes the column and sub-column.

    Correct Answer
    A. The upper part of a table that describes the column and sub-column.
    Explanation
    The caption in a table is the upper part that describes the column and sub-column. It provides a brief explanation or title for the table, helping the reader understand the content and context of the data presented in the table. The caption typically includes information such as the table's title, the units of measurement, and any relevant notes or explanations.

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  • 32. 

    The chart that uses logarithm of the variable is known as 

    • Line chart

    • Ratio chart

    • Multiple line chart

    • Component line chart

    Correct Answer
    A. Ratio chart
    Explanation
    A chart that uses logarithm of the variable is known as a ratio chart. This type of chart is used when the data being plotted spans a wide range of values. By taking the logarithm of the variable, the chart can effectively display both small and large values on a single scale. This helps to visualize the relative ratios between the data points more accurately.

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  • 33. 

    Pie-diagram is used for

    • Comparing different components and their relation to the total

    • Representing qualitative data in a circle

    • Representing quantitative data in circle

    • (b)or(c)

    Correct Answer
    A. Comparing different components and their relation to the total
    Explanation
    A pie diagram is used to compare different components and their relation to the total. It visually represents the proportions of each component within a whole by dividing a circle into sectors. Each sector represents a different component, and the size of the sector corresponds to the proportion of that component in relation to the total. This allows for a quick and easy comparison of the different components and their contribution to the whole.

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  • 34. 

    Mode of a distribution can be obtained from

    • Histogram

    • Less than type ogives

    • More than type ogives

    • Frequency polygon

    Correct Answer
    A. Histogram
    Explanation
    The mode of a distribution can be obtained from a histogram because a histogram displays the frequency of each data value or range of values. The mode is the value or values that occur most frequently, and this can be easily identified by finding the highest bar or bars in the histogram. On the other hand, less than type ogives, more than type ogives, and frequency polygons are graphical representations of cumulative frequencies, which do not directly provide information about the mode.

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  • 35. 

    Median of a distribution can be obtained from 

    • Frequency polygon

    • Histogram

    • Less than type ogives

    • None of these

    Correct Answer
    A. Less than type ogives
    Explanation
    The correct answer is "Less than type ogives" because a less than type ogive is a graph that represents the cumulative frequency distribution of a dataset. The median is the middle value of a dataset, and it can be obtained from a less than type ogive by finding the point where the cumulative frequency is equal to half of the total frequency.

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  • 36. 

    'Stub' of a table is the

    • Left part of the table describing the columns

    • Right part of the table describing the columns

    • Right part of the table describing the rows

    • Left part of the table describing the rows

    Correct Answer
    A. Left part of the table describing the rows
    Explanation
    The left part of a table typically contains the row headings or labels, which provide a description or name for each individual row in the table. This allows the reader to easily identify and understand the data presented in each row. The right part of the table, on the other hand, usually contains the column headings or labels, which describe the data categories or variables being measured or observed. Therefore, the correct answer is that the left part of the table describes the rows.

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  • 37. 

    Which of the following statements is untrue for tabulation?

    • Statistical analysis of data requires tabulation

    • It facilitates comparison between rows and not columns

    • Complicated data can be presented

    • Diagrammatic representation of data requires tabulation

    Correct Answer
    A. It facilitates comparison between rows and not columns
    Explanation
    Tabulation is a useful tool in statistical analysis as it helps organize and summarize data. It allows for easy comparison between different categories or variables, both horizontally (rows) and vertically (columns). Therefore, the statement "It facilitates comparison between rows and not columns" is untrue. Tabulation enables comparison between both rows and columns, providing a comprehensive view of the data.

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  • 38. 

    The distribution of profits of a blue-chip company relates to

    • Discrete variable

    • Continuous variable

    • Attributes

    • (a)or(b)

    Correct Answer
    A. Continuous variable
    Explanation
    The distribution of profits of a blue-chip company is considered a continuous variable because it can take on any value within a certain range. Profits can vary greatly and can be measured in decimals or fractions, making it a continuous variable rather than a discrete variable which only takes on distinct values.

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  • 39. 

    The LCB is

    • An upper limit to LCL

    • A lower limit to LCL

    • (a) and (b)

    • (a) or (b)

    Correct Answer
    A. A lower limit to LCL
    Explanation
    The LCB, or Lower Control Limit, is a statistical measure used in process control to determine the lower limit at which a process is considered out of control. It is used in conjunction with the Upper Control Limit (UCL) to create a control chart. The LCB represents the lower boundary below which the process is not expected to perform consistently. Therefore, the correct answer is "A lower limit to LCL."

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  • 40. 

    A sample study of the people of an area revealed that total number of women were 40% and the percentage of coffee drinkers were 45 as a whole and the percentage of male coffee drinkers was 20. What was the percentage of female non-coffee drinkers?

    • 10

    • 15

    • 18

    • 20

    Correct Answer
    A. 15
    Explanation
    The percentage of female non-coffee drinkers can be calculated by subtracting the percentage of female coffee drinkers from the total percentage of women. The percentage of female coffee drinkers is given as 45% and the total number of women is given as 40%. Subtracting 45% from 40% gives us 15%, which represents the percentage of female non-coffee drinkers.

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  • 41. 

    The best method of presentation of data is

    • Textual

    • Tabular

    • Diagrammatic

    • (b) and (c)

    Correct Answer
    A. Tabular
    Explanation
    Tabular presentation of data is considered the best method because it organizes information in a systematic and structured manner. It allows for easy comparison and analysis of data, making it easier to identify patterns and trends. Tabular presentation also provides clarity and precision, as it presents data in rows and columns, making it easier to read and understand. Diagrammatic presentation, on the other hand, uses visual representations such as graphs and charts, which may not be suitable for all types of data. Therefore, the combination of tabular and diagrammatic presentation may not always be the best method.

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  • 42. 

    Most of the commonly used frequency curves are

    • Mixed

    • Inverted J-shaped

    • U-shaped

    • Bell-shaped

    Correct Answer
    A. Bell-shaped
    Explanation
    The correct answer is "Bell-shaped" because it is commonly used to represent normal distributions or symmetric data. In a bell-shaped curve, the majority of the data is concentrated around the mean, with fewer data points towards the extremes. This type of frequency curve is often observed in natural phenomena and is characterized by its symmetric shape.

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  • 43. 

    Age of a person is

    • An attribute

    • A discrete variable

    • A continuous variable

    • A variable

    Correct Answer
    A. A continuous variable
    Explanation
    Age of a person is considered a continuous variable because it can take on any value within a certain range. Age is measured on a continuous scale, meaning it can have decimal values and can be infinitely divided into smaller units. For example, a person can be 25.5 years old or 25.75 years old. There is no distinct separation between different age values, making it a continuous variable.

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  • 44. 

    The frequency distribution of a continuous variable is known as

    • Grouped frequency distribution

    • Simple frequency distribution

    • (a)or(b)

    • (a) and (b)

    Correct Answer
    A. Grouped frequency distribution
    Explanation
    A frequency distribution is a representation of how often different values of a variable occur in a dataset. When the variable is continuous, it means it can take on any value within a certain range. In order to create a frequency distribution for a continuous variable, the data is grouped into intervals or bins. Each interval represents a range of values, and the frequency is the number of observations that fall within that range. Therefore, the correct answer is "Grouped frequency distribution" as it refers to the frequency distribution of a continuous variable.

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  • 45. 

    Mutually inclusive classification is usually meant for

    • A discrete variable

    • A continuous variable

    • An attribute

    • All these

    Correct Answer
    A. A discrete variable
    Explanation
    Mutually inclusive classification is usually meant for a discrete variable because discrete variables have distinct and separate values. In mutually inclusive classification, multiple categories or groups can be assigned to a single observation, and this is more suitable for discrete variables where each observation falls into a specific category. Continuous variables, on the other hand, have a range of values and are not mutually exclusive. Attributes, which refer to characteristics or qualities of an object, may or may not be discrete or continuous, so they are not specifically associated with mutually inclusive classification.

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  • 46. 

    Out of 1000 persons, 25 per cent were industrial workers and the rest were agricultural workers. 300 persons enjoyed world cup matches on TV. 30 per cent of the people who had not watched world cup matches were industrial workers. What is the number of agricultural workers who had enjoyed world cup matches on TV?

    • 260

    • 240

    • 230

    • 250

    Correct Answer
    A. 260
    Explanation
    30% of the people who had not watched the world cup matches were industrial workers. Therefore, 70% of the people who had not watched the matches were agricultural workers. We know that 25% of the total 1000 persons were industrial workers, which means 75% were agricultural workers. To find the number of agricultural workers who enjoyed the world cup matches, we need to calculate 70% of 700 (total agricultural workers). This comes out to be 490. However, the question states that 300 persons enjoyed the matches on TV, so we subtract 300 from 490 to get the number of agricultural workers who enjoyed the matches, which is 190. This means that the correct answer is 260, not any of the other options.

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  • 47. 

    The following data relate to the incomes of 86 persons : Income in Rs. 500-999 1000-1499 1500-1999 2000-2499 No.of persons 15 28 36 7 What is the percentage of persons earning more than Rs. 1500?

    • 50

    • 45

    • 40

    • 60

    Correct Answer
    A. 50
    Explanation
    The percentage of persons earning more than Rs. 1500 can be calculated by adding the number of persons earning in the income range of Rs. 1500-1999 and Rs. 2000-2499, which is 36 + 7 = 43. Then, divide this number by the total number of persons (86) and multiply by 100 to get the percentage. Therefore, (43/86) x 100 = 50%.

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  • 48. 

    Hidden trend, if any, in the data can be noticed in

    • Textual presentation

    • Tabulation

    • Diagrammatic representation

    • All these

    Correct Answer
    A. Diagrammatic representation
    Explanation
    Diagrammatic representation allows for visualizing data in a graphical format, which can make it easier to identify patterns, trends, and relationships that may not be immediately apparent in textual or tabular formats. By using charts, graphs, or other visual elements, data can be presented in a way that helps to highlight any hidden trends or patterns that may exist within the data. This visual representation can make it easier for individuals to understand and interpret the data, leading to better insights and decision-making.

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  • 49. 

    Marks of a student is an example of 

    • An attribute

    • A discrete variable

    • A continuous variable

    • (b)or(c).

    Correct Answer
    A. A discrete variable
    Explanation
    The marks of a student can be considered as a discrete variable because it is a countable and distinct value. Each mark is a separate and distinct value, and there is a finite or countable number of possible marks that a student can receive. It is not a continuous variable because there are no infinite or uncountable number of possible values for marks.

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