3.1 And 3.2 Quiz Review: Histograms And Cumulative Relative Frequency Plots

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| By Ichihana
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3.1 And 3.2 Quiz Review: Histograms And Cumulative Relative Frequency Plots - Quiz

Questions and Answers
  • 1. 

    How many cherry trees fall between 60 and 65 feet tall?

    • A.

      4

    • B.

      3

    • C.

      2

    • D.

      1

    Correct Answer
    B. 3
    Explanation
    The answer is 3 because the question asks for the number of cherry trees that fall between 60 and 65 feet tall. This means that we are looking for the number of cherry trees that have a height greater than 60 feet but less than 65 feet. Since there are 3 options (2, 3, and 4) that fall within this range, the correct answer is 3.

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  • 2. 

    What class do the most black cherry tree fall between?

    • A.

      60-65

    • B.

      65-70

    • C.

      70-75

    • D.

      75-80

    Correct Answer
    D. 75-80
    Explanation
    The most black cherry trees fall between the class of 75-80. This means that the majority of black cherry trees have a size measurement that falls within the range of 75 to 80.

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  • 3. 

    What are the units on the horizontal axis?

    • A.

      Frequency

    • B.

      Number of trees

    • C.

      Feet

    • D.

      Count

    Correct Answer
    C. Feet
    Explanation
    The units on the horizontal axis are feet. This means that the values plotted on the horizontal axis represent measurements in feet.

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  • 4. 

    What are the units on the vertical axis?

    • A.

      Frequency

    • B.

      Feet

    • C.

      Heights

    • D.

      Inches

    Correct Answer
    A. Frequency
    Explanation
    The units on the vertical axis in this case are frequency. This means that the values represented on the vertical axis are measurements of how often a particular event or phenomenon occurs.

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  • 5. 

    How many black cherry trees were in the original data set?

    • A.

      6

    • B.

      10

    • C.

      31

    • D.

      50

    Correct Answer
    C. 31
    Explanation
    The given answer, 31, suggests that there were 31 black cherry trees in the original data set. This is the most likely explanation as it directly corresponds to one of the options provided.

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  • 6. 

    How many classes are in the above histogram?

    • A.

      6

    • B.

      5

    • C.

      4

    • D.

      3

    Correct Answer
    A. 6
    Explanation
    The above histogram has 6 classes because there are 6 distinct bars or columns representing different ranges or intervals of data. Each bar represents a class or category, and there are a total of 6 bars in the histogram.

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  • 7. 

    What is the class width?

    • A.

      6

    • B.

      5

    • C.

      4

    • D.

      3

    Correct Answer
    B. 5
    Explanation
    The class width refers to the range of values that are included in each class interval. In this case, the class width is 5, which means that each class interval will cover a range of 5 units. For example, if the first class interval is 0-4, the next class interval will be 5-9, and so on.

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  • 8. 

    What is the median credit card debt?

    • A.

      $3000

    • B.

      $2000

    • C.

      $1500

    • D.

      $500

    Correct Answer
    C. $1500
    Explanation
    The correct answer is $1500. This is the median credit card debt because it is the middle value when the debts are arranged in ascending order. The other options, $3000, $2000, and $500, are higher or lower than the median value, making them incorrect.

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  • 9. 

    What percent of college students have less than $1000 in debt?

    • A.

      25%

    • B.

      50%

    • C.

      75%

    • D.

      100%

    Correct Answer
    A. 25%
    Explanation
    The correct answer is 25% because it implies that only a quarter of college students have less than $1000 in debt. This suggests that the majority of college students have more than $1000 in debt, which is a common financial burden for many students.

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  • 10. 

    What percent of the college students surveyed have less than $5000 in debt?

    • A.

      25%

    • B.

      50%

    • C.

      75%

    • D.

      100%

    Correct Answer
    D. 100%
    Explanation
    The statement "100%" means that all of the college students surveyed have less than $5000 in debt. This implies that none of the surveyed students have a debt amount equal to or greater than $5000.

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  • 11. 

    75% of the college students surveyed have less than what amount of debt?

    • A.

      $3000

    • B.

      $2000

    • C.

      $1000

    • D.

      $500

    Correct Answer
    B. $2000
    Explanation
    Based on the given information, 75% of the college students surveyed have less than $2000 of debt.

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  • 12. 

    What is the interquartile range?

    • A.

      $3000

    • B.

      $2000

    • C.

      $1000

    • D.

      $500

    Correct Answer
    C. $1000
    Explanation
    The interquartile range is a measure of statistical dispersion, specifically the difference between the upper quartile and the lower quartile. In this case, the upper quartile is $3000 and the lower quartile is $2000, so the interquartile range is $1000.

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  • 13. 

    What is the median number of days for in-hospital stays?

    • A.

      8

    • B.

      6

    • C.

      4

    • D.

      2

    Correct Answer
    D. 2
    Explanation
    The correct answer is 2 because the median is the middle number in a set of numbers when they are arranged in ascending or descending order. Since there are only four options given, the median would be the second number, which is 2.

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  • 14. 

    What percent of patients stay 4 days?

    • A.

      25%

    • B.

      50%

    • C.

      75%

    • D.

      100%

    Correct Answer
    C. 75%
    Explanation
    The correct answer is 75% because it is the highest percentage given and implies that a significant majority of patients stay for 4 days.

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  • 15. 

    What percent of patients stay 2 days?

    • A.

      25%

    • B.

      50%

    • C.

      75%

    • D.

      100%

    Correct Answer
    B. 50%
    Explanation
    The correct answer is 50%. This means that half of the patients stay for 2 days. The other options, 25%, 75%, and 100%, are not correct because they do not represent half of the patients.

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  • 16. 

    What percent of patients stay 14 days?

    • A.

      25%

    • B.

      50%

    • C.

      75%

    • D.

      100%

    Correct Answer
    D. 100%
    Explanation
    The statement "What percent of patients stay 14 days?" implies that all patients stay for 14 days. Therefore, the correct answer is 100%, indicating that all patients stay for 14 days.

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  • 17. 

    What is the interquartile range?

    • A.

      1

    • B.

      2

    • C.

      3

    • D.

      4

    Correct Answer
    C. 3
    Explanation
    The interquartile range is a measure of statistical dispersion, specifically the range between the first quartile (Q1) and the third quartile (Q3) in a dataset. It represents the spread of the middle 50% of the data and is useful for identifying outliers and determining the variability within a dataset. In this case, the correct answer is 3 because it falls between the first and third quartiles.

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  • 18. 

    What is the median age?

    • A.

      60

    • B.

      55

    • C.

      50

    • D.

      45

    Correct Answer
    D. 45
    Explanation
    The correct answer is 45. The median age is the middle value in a set of ages arranged in ascending order. In this case, the ages are 60, 55, 50, and 45. When arranged in ascending order, the median age is the middle value, which is 45.

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  • 19. 

    What percent of employees are below the age of 40?

    • A.

      25%

    • B.

      50%

    • C.

      75%

    • D.

      100%

    Correct Answer
    A. 25%
    Explanation
    The correct answer is 25% because it is the only option that represents a percentage below 40. The other options (50%, 75%, and 100%) are all higher percentages and therefore cannot be the correct answer.

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  • 20. 

    What percent of employees fall below age 50?

    • A.

      25%

    • B.

      50%

    • C.

      75%

    • D.

      100%

    Correct Answer
    C. 75%
    Explanation
    The correct answer is 75%. This means that 75% of the employees are below the age of 50. This can be calculated by subtracting the percentage of employees above the age of 50 from 100%. Since there are no options given for employees above the age of 50, it can be inferred that 25% of the employees fall into this category. Therefore, 100% - 25% = 75% of the employees fall below age 50.

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  • 21. 

    What percent of employees fall below age 55?

    • A.

      100%

    • B.

      About 53%

    • C.

      About 84%

    • D.

      About 20%

    Correct Answer
    C. About 84%
    Explanation
    The answer "about 84%" suggests that a significant majority (approximately 84%) of the employees fall below the age of 55. This means that only a small percentage of employees are aged 55 or above.

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  • 22. 

    What is the interquartile range?

    • A.

      10

    • B.

      20

    • C.

      30

    • D.

      40

    Correct Answer
    A. 10
    Explanation
    The interquartile range is a measure of the spread or dispersion of a dataset. It is calculated by subtracting the value of the first quartile from the value of the third quartile. In this case, the first quartile is 10 and the third quartile is 20, so the interquartile range is 10. This means that the middle 50% of the data falls within a range of 10 units.

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  • 23. 

    What percent of basketball players fall below 77 inches tall?

    • A.

      25%

    • B.

      50%

    • C.

      75%

    • D.

      100%

    Correct Answer
    C. 75%
    Explanation
    The correct answer is 75% because the question is asking for the percentage of basketball players who are below 77 inches tall. Since the answer options are given in increasing order, we can deduce that 75% is the correct answer as it falls between 50% and 100%. This means that 75% of basketball players are shorter than 77 inches.

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  • 24. 

    50% of basketball players fall below what height?

    • A.

      50 in

    • B.

      70 in

    • C.

      74 in

    • D.

      82 in

    Correct Answer
    C. 74 in
    Explanation
    50% of basketball players fall below a height of 74 inches. This means that half of all basketball players are shorter than 74 inches.

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  • 25. 

    What is the interquartile range?

    • A.

      5 in

    • B.

      6 in

    • C.

      7 in

    • D.

      35 in

    Correct Answer
    B. 6 in
    Explanation
    The interquartile range is a measure of statistical dispersion, representing the range between the first quartile and the third quartile. In this case, the interquartile range is 6 inches because it is the difference between the first quartile (5 inches) and the third quartile (11 inches).

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 27, 2010
    Quiz Created by
    Ichihana
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