Elementary Statistics (12th Edition)

Published by Pearson
ISBN 10: 0321836960
ISBN 13: 978-0-32183-696-0

Chapter 3 - Statistics for Describing, Exploring, and Comparing Data - 3-2 Measures of Center - Beyond the Basics - Page 95: 38


It is a lot more than the actual mean.

Work Step by Step

We calculate the quadratic mean: $\sqrt {\frac{3\cdot 0^{2}+2\cdot100^{2}+2\cdot(-100)^{2}+2\cdot162^{2}+2\cdot(-162)^{2}}{11}}=114.8$. The actual mean is 0, so it is a lot more than the actual mean.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.