Chapter 6 Data Displays and Analysis

What is the mean of the following numbers?

48 , 37 , 43 , 40 , 36 , 40 , 29 , 21

• 25.75

• 38.5

• 36.75

• 41.5

What is the mode of the following numbers?

42 , 44 , 76 , 81 , 42 , 31 , 54 , 44

• 42

• 76

• 31

• 44

What is the lower quartile of the follow data:

29 , 41 , 64 , 29 , 28 , 65

• 27

• 40

• 29

• 30

What is the range of the following data?

17 , 52 , 45 , 35 , 67 , 92 , 9 , 43

• 83

• 75

• 58

• 82

Does the box and whiskers plot match the given data below?

56 , 46 , 60 , 52 , 71 , 43 , 44

Choose all of the following that are correct regarding the data:

• The mode is 61

• The median is 56.5

• The maximum is 72

• The interquartile range is 17.5

• The range is 36

Which of the following Box-and-Whiskers has the greatest median?

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Dale's score on a math test is equal to the lower quartile value of all the scores on the test. Based on the information, which statement about Dale's score is most likely true?

• Dale's score is greater than 25% of all the scores

• Dal's score is 25

• Dale's score is the same as 25% of all the scores

• Dale's score is greater than 25 other scores

Determine which Stem and Leaf plot has mode and median values that are equal.

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Determine the missing numbers that make the measures true.

___ , ___ , ___ , 24 , 26 , 29

Mean: 19

Median: 20

Range: 21

• 8, 11, 14

• 8, 13, 16

• 10, 13, 16

• 8, 11, 16