A statistics student made the following grates on 7 78, 82, 92, 95, 79, 86, and

Question

A statistics student made the following grates on 7 78, 82, 92, 95, 79, 86, and 82. What is the mean grade? 78 80 86 84 88 A statistics student made the following grades on 7 tests: 76, 82, 92, 95, 79, 86, and 92. What is the median grade? 86 76 82 94 95 A statistics student made the following grades on 7 tests: 76, 82, 92, 95, 76, 86, and 92. What is the mode? 79 82 86 92 76 The ages of students in a class have been put into the frequency distribution below. What is the mode age of these students? 18 19 20 21 23 The following box and whisker plot was constructed for the age of accounts receivable. The box and whisker plot reveals that the accounts receivable ages are _____ skewed to the left skewed to the right not skewed normally distributed symmetrical The following frequency distribution was constructed for the wait times in the emergency room.

Explanation / Answer

(14)

The mean grade is the average of all the grades listed, and equals 86

(15)

The median is the middle scores when all the scores are arranged in ascending order, and equals 86

(16)

The mode is the score occuring the most number of times, and equals 92

(17)

The mode is the age which most number of students have, and equals 20

(18)

Since the longer part of the box is to the right, so the plot is right skewed.

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