Statistics: Informed Decisions Using Data (4th Edition)

Published by Pearson
ISBN 10: 0321757270
ISBN 13: 978-0-32175-727-2

Chapter 3 - Section 3.1 - Assess Your Understanding - Vocabulary and Skill Building - Page 135: 7



Work Step by Step

Using the formula for the sample mean $\bar x$ : $\bar x=\frac{\Sigma x_{i}}{n}=\frac{20+13+4+8+10}{5}=\frac{55}{5}=11$
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