Answer
American-born=$52.68$
Foreign-born $\mu=7.32, \sigma^2=6.43, \sigma=2.54$
Work Step by Step
$p=0.122, q=0.878, n=60$
American-born=$nq=52.68$
Foreign-born $\mu=np=7.32, \sigma^2=npq=6.43, \sigma=2.54$
Elementary Statistics: A Step-by-Step Approach with Formula Card 9th Edition
by Bluman, Allan
Published by
McGraw-Hill Education
ISBN 10:
0078136334
ISBN 13:
978-0-07813-633-7
Chapter 5 - Discrete Probability Distributions - 5-3 The Binomial Distribution - Exercises 5-3 - Page 284: 21
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