Statistics Internal Examination
FYBSc Computer Science
Internal Examination
Statistics
Total Marks : 20
Max. Time : 20 Min
- 1.
The Variable that does not really have evaluative distinction between its values is measured on______
Correct Answer
Nominal - 2.
Measurement of Gender is qualitative data
- A.
True
- B.
False
Correct Answer
A. True -
- 3.
Sources of Data
- A.
Primary
- B.
Discrete
- C.
Secondary
- D.
Continuous
Correct Answer(s)
A. Primary
C. Secondary -
- 4.
Collection of data about all the units in the population
- A.
Population Survey
- B.
Census Survey
- C.
Statistical
- D.
Variable
Correct Answer(s)
A. Population Survey
B. Census Survey -
- 5.
Classification of data on the basis of Characteristics
- A.
Attribute
- B.
Chronological
- C.
Variable
- D.
Geograaphical
Correct Answer(s)
A. Attribute
B. Chronological -
- 6.
Find the Class Width of Interval 5.25 - 11.25 is ____
Correct Answer(s)
6 - 7.
Smooth Hand Free Curve nearest to all the points is____
Correct Answer(s)
frequency curve - 8.
A data value = Stem Value x Stem Size + Leaf Value x Leaf size
- A.
True
- B.
False
Correct Answer
A. True -
- 9.
Arithmetic Mean is given by
- A.
Addition of all the values and divide by total number of observation
- B.
Addition of all the f.x and divide by total frequency
- C.
Subraction of Values and multiply by total number of observation
- D.
Add all the values
Correct Answer(s)
A. Addition of all the values and divide by total number of observation
B. Addition of all the f.x and divide by total frequency -
- 10.
In quartiles, central tendency median to be measured must lie in
- A.
First quartile
- B.
Second quartile
- C.
Third quartile
- D.
Four quartile
Correct Answer
B. Second quartile -
- 11.
Arithmetic mean is 12 and number of observations are 20 then sum of all values is
- A.
8
- B.
32
- C.
240
- D.
1.667
Correct Answer
C. 240 -
- 12.
Method used to compute average or central value of collected data is considered as
- A.
Measures of positive variation
- B.
Measures of central tendency
- C.
Measures of negative skewness
- D.
Measures of negative variation
Correct Answer
B. Measures of central tendency -
- 13.
A graph of cumuative distribution is called
- A.
Histogram
- B.
Frequency Curve
- C.
Ogive
- D.
None of above
Correct Answer
C. Ogive -
- 14.
In Histrogram area of each rectangle is equal to
- A.
Size of class interval
- B.
Size of class mark
- C.
Size of frequency
- D.
Size of interval
Correct Answer
A. Size of class interval -
- 15.
If quartile range is 24 then quartile deviation is
- A.
48
- B.
12
- C.
24
- D.
32
Correct Answer
B. 12 -
- 16.
Variability which is defined as difference between third and first quartile is considered as
- A.
Percentile range
- B.
Deciles range
- C.
Quartile range
- D.
Inter quartile range
Correct Answer
D. Inter quartile range -
- 17.
Measurement techniques used to measure extent of skewness in data set values are called
- A.
Measure of median tail
- B.
Measure of distribution width
- C.
Measure of tail distribution
- D.
Measure of skewness
Correct Answer
D. Measure of skewness -
- 18.
In measures of skewness, absolute skewness is equal to
- A.
Mean+mode
- B.
Mean-mode
- C.
Mean+median
- D.
Mean-median
Correct Answer
B. Mean-mode -
- 19.
Give the condition for Symmteric Data
- A.
Covariance is Zero
- B.
Mean = Median = Mode
- C.
Negatively Skewed
- D.
Positively Skewed
Correct Answer(s)
A. Covariance is Zero
B. Mean = Median = Mode -
- 20.
If median is 12, mean is 15 and standard deviation of data is 3 then Karl Pearson's coefficient of skewness is
- A.
17
- B.
27
- C.
23
- D.
3
Correct Answer
D. 3 -
- 21.
In kurtosis, frequency curve which looks more peaked than normal curve of bell shaped distribution is classified as
- A.
Mega curve
- B.
Mesokurtic
- C.
Leptokurtic
- D.
Platykurtic
Correct Answer
C. Leptokurtic -
- 22.
Data collected by Door to Door Visit______
Correct Answer
Primary Source - 23.
Data based on workers salary is as 2500, 2700, 2600, 2800, 2200, 2100, 2000, 2900, 3000, 2800, 2200, 2500, 2700, 2800, 2600 and number of classes desired is 10 then width of class interval is
- A.
400
- B.
300
- C.
100
- D.
200
Correct Answer
C. 100 -
- 24.
Classification method in which upper and lower limits of interval is also in class interval itself is called
- A.
Exclusive method
- B.
Inclusive method
- C.
Mid point method
- D.
Ratio method
Correct Answer
A. Exclusive method -
- 25.
'less than type distribution' and 'more than type distribution' are types of
- A.
Class distribution
- B.
Cumulative class distribution
- C.
Cumulative frequency distribution
- D.
Upper limit distribution
Correct Answer
C. Cumulative frequency distribution -
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Aug 20, 2017Quiz Edited by
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Aug 23, 2016Quiz Created by
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