Math 8 LAST QUIZ

A histogram shows the number of books read by students in a class. The tallest bar ranges from 11-15 books and contains 12 students. What is the most common range of books read by the students?

• 0-5 books

• 6-10 books

• 11-15 books

• 16-20 books

A stem-and-leaf plot displays the test scores of a class. The stem "8" has leaves "4, 7, 9". What are the corresponding test scores?

• 84, 87, 89

• 74, 77, 79

• 94, 97, 99

• 64, 67, 69

A box and whisker plot shows the distribution of ages in a youth club. The box spans from 10 to 15 years, and the whiskers extend from 8 to 18 years. What is the range of ages in the club?

• 8 years

• 10 years

• 18 years

• 20 years

Interpreting a histogram: If the histogram has a bar at 20-30 with a height of 50 units, what does this represent?

• 20 to 30 people are 50 years old.

• 50 people are between 20 and 30 years old.

• 20 to 30 people are between 40 and 50 years old.

• 50 people are between 40 and 50 years old.

In a stem-and-leaf plot, if the stem "6" has the leaves "1, 2, 5, 5", what is the mode of the data?

• 61

• 62

• 65

• There is no mode.

A box and whisker plot indicates that the first quartile is at 25, the median is at 35, and the third quartile is at 45. Where will the middle line be?

• 10

• 20

• 25

• 35

What does the height of a bar in a histogram typically represent?

• The range of data

• The median of the data

• The frequency of the data

• The average of the data

In a stem-and-leaf plot, if the highest leaf on the stem "9" is "7", what is the maximum value in the data?

• 87

• 97

• 107

• 117

A box and whisker plot shows the minimum value at 10, the maximum value at 50, and the median at 30. Which of the following statements is true?

• The data is skewed because the median is not at 30.

• The data is evenly distributed.

• The range is 20

• The range is 40

When reading a histogram, what does a gap between two bars typically indicate?

• There is an outlier in the data.

• There is no data for that range.

• The data is continuous.

• The data is incorrectly plotted.