Statistics (12th Edition)

Published by Pearson
ISBN 10: 0321755936
ISBN 13: 978-0-32175-593-3

Chapter 2 - Methods for Describing Sets of Data - Exercises 2.71 - 2.89 - Applying the Concepts - Intermediate - Page 66: 2.89a

Answer

Range = $10.$ Variance = $7.67$ St. deviation $= 2.77$

Work Step by Step

We import the data file into our spreadsheet calculator. After invoking the "Descriptive Statistics" option from the add-on Data Analysis feature, we read the summary report (see below) to find: Range = $10.$ Variance = $7.67$ St. deviation $= 2.77$
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