Elementary Statistics: A Step-by-Step Approach with Formula Card 9th Edition

Published by McGraw-Hill Education
ISBN 10: 0078136334
ISBN 13: 978-0-07813-633-7

Chapter 3 - Data Description - 3-1 Measures of Central Tendency - Exercises 3-1 - Page 123: 8

Answer

Mean: 24.422 Median: 23.45 Mid Range: 32.1 The mean is slightly higher than the median indicating more high values (right skewed). The midrange is higher than both mean and median indicating a very high maximum. The median would be the best measure as it minimizes the influences of abnormal values such as the very high maximum.

Work Step by Step

Minimum: 16.5 Maximum: 47.7 Range: 31.2 Count: 50 Sum: 1221.1 mean=Sum/Count median: find the middle value midrange=(47.7+16.5)/2
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