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Refer to Exercise 87. a. Find the range of Joeys first 14 quiz grades and the range of Joeys quiz grades after his unexcused absence.

Refer to Exercise 87.

a. Find the range of Joey’s first 14 quiz grades and the range of Joey’s quiz grades after his unexcused absence.

b. Explain what part (a) suggests about using the range as a measure of variability for a distribution of quantitative data.

Exercise 87.

Joey’s first 14 quiz grades in a marking period were as follows:

86 84 91 75 78 80 74 87 76 96 82 90 98 93

86 87 84 76 91 96 75 82 78 90 80 98 74 93

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