Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 12 - Data Analysis and Probability - 12-3 Measures of Central Tendency and Dispersion - Practice and Problem-Solving Exercises - Page 731: 26


Mean=20.56 Mode=18.4 Range=23 Median=8.4

Work Step by Step

You have 33.8,10.8,18.4,21.4,18.4. To find the mean divide by 5 because you have 5 values $\frac{33.8+10.8+18.4+21.4+18.4}{5}$=$\frac{102.8}{5}$=20.56 To find the median you have to arrange the values from the least to greatest and find the middle number: 10.8,18.4,18.4,21.4,33.8. The middle value is 18.4 The range is the largest number minus the smallest number, so 33.8-10.8=23 The mode is the number that occurs the most which is 18.4. Mean=20.56, Median=18.4, Range=23, Mode=18.4
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