Elementary Statistics (12th Edition)

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

Chapter 5 - Discrete Probability Distributions - 5-4 Parameters for Binomial Distributions - Basic Skills and Concepts: 2

Answer

The two expressions will always give the same result. Standard deviation: 4.192.

Work Step by Step

The two expressions will always give the same result, because q=1-p. Standard deviation: $\sqrt{n\cdot p \cdot (1-p)}=\sqrt{270\cdot 0.07 \cdot 0.93}=4.192.$
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