Basic Statistics: Tales of Distributions 10th Edition

Published by Cengage Learning
ISBN 10: 0-49580-891-1
ISBN 13: 978-0-49580-891-6

Chapter 4 - Exploring Data: Variability - Problems - Page 63: 4.10

Answer

* **Both results are between 2 and 5**, confirming that standard deviation is not wildly inconsistent with the data spread indicated by the range.

Work Step by Step

### From 4.9: #### Distribution a: 5, 4, 3, 2, 1, 0 * **Range**: $5 - 0 = 5$ * **Standard Deviation**: $S_a \approx 1.71$ $$ \text{Range} \div S = \frac{5}{1.71} \approx 2.92 $$ **Between 2 and 5** --- #### Distribution b: 5, 5, 5, 0, 0, 0 * **Range**: $5 - 0 = 5$ * **Standard Deviation**: $S_b = 2.5$ $$ \text{Range} \div S = \frac{5}{2.5} = 2.0 $$ **Exactly 2 — still between 2 and 5**
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