Quiz about Statistical Representations - HHS March Madness

Question 1

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?

Accepted Answer

81

Answer

62

Answer

71

Answer

92

Question 2

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?

Accepted Answer

168

Answer

145

Answer

150

Answer

152

Question 3

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

Accepted Answer

B. 75

Answer

A. 70

Answer

C. 77

Answer

D. 85

Question 4

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?

Accepted Answer

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

Answer

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

Answer

All nuclear engineers earn more than all police officers.

Answer

A musician will eventually earn more than a police officer.

Question 5

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?

Accepted Answer

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

Answer

A. The second quartile is 600.

Answer

B. The mean of the attendance is 400.

Answer

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

Question 6

What is the value of the upper quartile?

Accepted Answer

84

Answer

68

Answer

76

Answer

94

Question 7

What percentage of the test scores are less than 72?

Accepted Answer

A. 25

Answer

B. 50

Answer

C. 75

Answer

D. 100

Question 8

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

Accepted Answer

60

Answer

40

Answer

45

Answer

100

Question 9

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

Accepted Answer

The range is 12.

Answer

The median is 7.

Answer

The first quartile is 4.

Answer

The third quartile is 11.

Question 10

The box-and-whisker plot below represents the ages of 12 people. What percent of these people are age 15 or older?

Accepted Answer

75

Answer

25

Answer

35

Answer

85

Question 11

The box-and-whisker plot below represents the results of test scores in a math class. What do the scores 65, 85, and 100 represent?

Accepted Answer

B. Q1, Q3, maximum

Answer

A. Q1, median, Q3

Answer

C. median, Q1, maximum

Answer

D. minimum, median, maximum

Question 12

Yvonne and her family went on a 10-day fishing trip. The data set below shows the number of fish they caught each day: 14, 4, 8, 16, 7, 12, 10, 11, 10, 9.

Which box-and-whisker plot represents the number of fish Yvonne and her family caught on their fishing trip?

Accepted Answer

Question 13

About what percent of the repairs of this vehicle cost more than $300?

Accepted Answer

C. 50%

Answer

A. 20%

Answer

B. 25%

Answer

D. 100%

Question 14

Which number is closest to the median of the data set represented by the box-and-whisker plot below?

Accepted Answer

65

Answer

75

Answer

60

Answer

50

Question 15

The box-and-whisker plot below shows the summer salaries of teenagers working in a restaurant. Based on the box-and-whisker plot, which of the statements about the summer salaries must be true?

Accepted Answer

About half the teenagers earn between $500 and $2500.

Answer

The least number of salaries are between $500 and $1000.

Answer

The average (mean) salary is $2500.

Answer

There are more teenagers who make over $2500 than teenagers who make less than $2500.

Question 16

The box-and-whisker plot represents the average grades on the semester final in Mrs. Chambers' math class. If the trend remains the same this year, what will the median score of the class be?

Accepted Answer

72%

Answer

69.5%

Answer

71.2%

Answer

72.5%

Question 17

The Millennium Computer Company took a survey of 500 eighth grade students. They asked them how many hours per week they spent on the Internet. The results are displayed in this box-and-whisker plot. What is the interquartile range?

Accepted Answer

5 Hours

Answer

4 Hours

Answer

7 Hours

Answer

9 Hours

Question 18

The box-and-whisker plot below describes the weights of a sample of 100 chickens. What statement can be made about the data, using the graph alone?

Accepted Answer

The median weight is less than 2 lb.

Answer

The range of the weights is 3 lb.

Answer

Twenty-five percent of the chickens weigh less than 1 lb.

Answer

Fifty percent of the chickens weigh more than 2 lb.

Question 19

This box-and-whisker plot represents the average annual precipitation in Ohio over a ten-year period. Which of these is the median rainfall for the ten-year period?

Accepted Answer

39.1 inches

Answer

35.5 inches

Answer

40.0 inches

Answer

42.6 inches

Question 20

How much greater is the median weight of the dogs in Pet Store 2 than in Pet Store 1?

Accepted Answer

10

Answer

5

Answer

15

Answer

20

Question 21

Ms. Young recorded the heart rates of the students in her physical education class. She drew the box-and-whisker plot shown below using the heart rates as data. What is the interquartile range of the number of beats per minute?

Accepted Answer

28 beats per minute

Answer

10 beats per minute

Answer

46 beats per minute

Answer

67 beats per minute

Question 22

A set of data was used to make the box-and-whisker plot shown below. The upper quartile value of the data set is between which two numbers?

Accepted Answer

C. 75 and 80

Answer

A. 40 and 45

Answer

B. 55 and 60

Answer

D. 90 and 95

Question 23

Mr. Simmons made a box-and-whisker plot of the quiz grades in his mathematics class. Which appears to be the median quiz grade for the class?

Accepted Answer

77

Answer

70

Answer

80

Answer

85

Question 24

Which of the following can be determined from the box-and-whisker plot?

Accepted Answer

The median of the data is 62.

Answer

The interquartile range of the data set is 62.

Answer

The mean of the data is 62.

Answer

The mode of the data is 62.

Question 25

The diagram below shows the number of points scored by players in a game. What is the range of the data in the diagram?

Accepted Answer

C. 11

Answer

A. 6

Answer

B. 7

Answer

D. 15

Question 26

Based on the box-and-whisker plot, which of these must be true?

Accepted Answer

The interquartile range is half of the range.

Answer

The median score is 70.

Answer

The lower quartile score is 50.

Answer

Half of the scores are between 60 and 75.

Question 27

The histogram below shows the scores for all the students who took a mathematics quiz. What percent of the students received a score of 80 or above?

Accepted Answer

55%

Answer

40%

Answer

25%

Answer

11%

Question 28

The histogram below shows the relationship between the price of a used car and the number of used cars sold. Based on the histogram, which statement must be true?

Accepted Answer

D. Most of the used cars sold for less than $6,000.

Answer

A. No used car sold for $7,000.

Answer

B. Exactly 5 of the used cars sold for $4,000.

Answer

C. The most expensive used car sold for $11,999.

Question 29

Which question can be answered using the information from the histogram?

Accepted Answer

How many animals weigh at least 15 pounds?

Answer

How many animals weigh 4.9 pounds?

Answer

How many animals weigh between 5 and 10 pounds?

Answer

How many animals weigh less than 8 pounds?

Question 30

The histogram below represents the test scores for 161 fifth-grade students. Based on the histogram, which statement about the test scores must be true?

Accepted Answer

Most scores were 60 or greater.

Answer

About 65 students scored 28.

Answer

About 22 students scored 50.

Answer

Most scores were between 40 and 70.

Question 31

The graph shows times for runners in the 50-yard dash. How many runners ran the distance in less than 7.0 seconds?

Accepted Answer

11 runners

Answer

4 runners

Answer

5 runners

Answer

21 runners

Question 32

Which cannot be determined from these data?

Accepted Answer

age of the oldest family member at the reunion

Answer

number of family members at the reunion

Answer

number of family members older than 39 at the reunion

Answer

number of family members younger than 20 at the reunion

Question 33

Which statement best describes the weights of the orders represented in the histogram?

Accepted Answer

D. There is a peak in the orders from 6 to 10 pounds.

Answer

A. The orders cluster near 20 pounds.

Answer

B. The orders are symmetrical about 8 pounds.

Answer

C. There is a gap in the orders from 11 to 15 pounds.

Question 34

The histogram below displays student scores on Mr. Dell's English exam. How many students scored below 70 on the exam?

Accepted Answer

B. 6

Answer

A. 4

Answer

C. 9

Answer

D. 13

Question 35

How many members spent 10 or more hours in community service last month?

Accepted Answer

12

Answer

3

Answer

4

Answer

9

Question 36

What is the highest score in the class?

Accepted Answer

98%

Answer

88%

Answer

100%

Answer

13

Question 37

How many students spent 7 hours doing homework that week?

Accepted Answer

6

Answer

1

Answer

3

Answer

5

Question 38

What is the highest score in the class?

Accepted Answer

98%

Answer

88%

Answer

100%

Answer

13

Question 39

How many students spent 7 hours doing homework that week?

Accepted Answer

6

Answer

1

Answer

3

Answer

5

Question 40

How many people have 4 or more pets?

Accepted Answer

6

Answer

8

Answer

3

Answer

4

Question 41

How many students scored 93% or less?

Accepted Answer

16

Answer

6

Answer

14

Answer

13

Question 42

How many students scored between 95 and 100?

Accepted Answer

6

Answer

0

Answer

9

Answer

14

Question 43

Identify the outlier for the given data?
23, 34, 27, 7, 30, 26, 28, 31, 34

Accepted Answer

7

Answer

23

Answer

31

Answer

34

Question 44

What is the MEDIAN of this data?

Accepted Answer

90

Answer

20

Answer

80 and 90

Answer

None

Question 45

What is the RANGE of this data?

Accepted Answer

40

Answer

100

Answer

60

Answer

45

Question 46

What is the MODE of this data?

Accepted Answer

90

Answer

85, 90, and 95

Answer

85 and 95

Answer

None

Question 47

What is the shape of the dot plot shown?

Accepted Answer

symmetrical

Answer

skewed left

Answer

skewed right

Question 48

Choose the best description of the overall shape of the dot plot.

Accepted Answer

Symmetrical

Answer

Skewed right

Answer

Skewed left

Question 49

What is the mean?

Accepted Answer

the average

Answer

# happening the most

Answer

the number in the middle

Answer

biggest-smallest

Question 50

A data set can have more than one mode

Accepted Answer

True

Answer

False

Question 51

Find the mean of this data set:

2, 57, 38, 42, 6

Accepted Answer

29

Answer

38

Answer

50

Answer

145

Question 52

Find the median of this data set:

4, 2, 7, 4, 3

Accepted Answer

4

Answer

2

Answer

5

Answer

7

Question 53

Find the mode of this data set:

67, 74, 95, 98, 98, 99, 102

Accepted Answer

98

Answer

90.4

Answer

35

Answer

92

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