Statistical Representations - HHS March Madness

The accompanying diagram shows a box-and-whisker plot of student test scores on last year's Mathematics A midterm examination. What is the median score?

• 62

• 71

• 81

• 92

The student scores on Mrs. Frederick’s mathematics test are shown on the stem-and-leaf plot. Find the median of these scores.

Jorge made the accompanying stem-and-leaf plot of the weights, in pounds, of each member of the wrestling team he was coaching. What is the mode of the weights?

• 145

• 150

• 152

• 168

The accompanying box-and-whisker plot represents the scores earned on a science test. What is the median score?

• A. 70

• B. 75

• C. 77

• D. 85

The accompanying box-and-whisker plots can be used to compare the annual incomes of three professions.

Based on the box-and-whisker plots, which statement is true?

• The median income for nuclear engineers is greater than the income of all musicians.

• The median income for police officers and musicians is the same.

• All nuclear engineers earn more than all police officers.

• A musician will eventually earn more than a police officer.

A movie theater recorded the number of tickets sold daily for a popular movie during the month of June. The box-and-whisker plot shown below represents the data for the number of tickets sold, in hundreds.

Which conclusion can be made using this plot?

• A. The second quartile is 600.

• B. The mean of the attendance is 400.

• C. The range of the attendance is 300 to 600.

• D. Twenty-five percent of the attendance is between 300 and 400.

What is the value of the upper quartile?

• 68

• 76

• 84

• 94

What percentage of the test scores are less than 72?

• A. 25

• B. 50

• C. 75

• D. 100

What is the range of the data represented in the box-and-whisker plot shown below?

• 40

• 45

• 60

• 100

Based on the box-and-whisker plot below, which statement is false?

• The median is 7.

• The range is 12.

• The first quartile is 4.

• The third quartile is 11.