SOL 8.12 Box Plots

1) This box-and-whisker plot displays information about the test scores for 25 students. Based on the information in the box-and-whisker plot, which statement is true

• The mean test score is 85.

• The range of the test scores is 15.

• The highest score on the test is a 90.

• The median test score is 85.

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CCSS.6.SP.A.1

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2) What is the interquartile range of the box-and-whisker plot?

• 20

• 30

• 50

• 65

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CCSS.6.SP.A.2

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CCSS.6.SP.B.5

3) The male and female teachers at Montross Middle School recorded the number of years they have been teaching at the school. The box-and-whisker plots summarize the data. Which statement is false?

• The range in the years teaching is greater for the male teachers than for the female teachers.

• The teacher with the least number of years teaching is male.

• The difference is the maximum number of years teaching for male and female teachers is 1.

• The median number of years teaching for female teachers is 2 less than the median for male teachers.

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CCSS.6.SP.A.1

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4) The box-and-whisker plot shows the heights in centimeters of high school seniors compared to their heights as freshman. Using the median as the measure, which is closest to the difference in heights between the freshman and senior years?

• 0 cm.

• 5 cm.

• 10 cm.

• 15 cm.

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CCSS.6.SP.A.1

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7) The number of points two basketball teams scored is summarized in these box-and-whisker plots. Team A scored a different number of points in each of the team's 14 games. Team B scored a different number of points in each of the team's 13 games. What is the total number of games that Team A and Team B scored 55 or more points?

• 13

• 14

• 16

• 18

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CCSS.6.SP.A.1

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8) A baker recorded the number of batches of cookies he made on each of seven days. He baked a different number of batches of cookies each day. Thus box-and-whisker plot summarizes his data. The baker baked 20 batches of cookies on the eighth day. He redraws the box-and-whisker plot to include his data. Which statement comparing the new box-and-whisker plot to the original box-and-whisker plot is NOT true?

• The median increased.

• The lower extreme increased.

• The upper extreme increased.

• The value of the interquartile range increased.

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CCSS.6.SP.A.1

CCSS.6.SP.A.2

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CCSS.6.SP.B.4

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What is the interquartile range?

• 4
• 6
• 2
• 8

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CCSS.6.SP.A.2

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CCSS.6.SP.B.5

What percent of the data is between 25 and 30 on the number line?

• 25%
• `50%
• 75%
• 100%

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CCSS.6.NS.C.6

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11. What percentage of the data is between 90 and 140?

• 25 %
• 50%
• 75%
• 100%

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CCSS.6.SP.A.1

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What percentage of the data is between 40 and 150?

• 25 %
• 50%
• 75%
• 100%

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CCSS.6.SP.A.1

CCSS.6.SP.A.2

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CCSS.6.SP.B.4

CCSS.6.SP.B.5