Answer
2.75
Work Step by Step
Using the given equations, we find:
$$\bar{x}=np=(36)(.7)=25.2$$
AND
$$ \sigma = \sqrt{np(1-p)}= \sqrt{25.2(1-.7)}=2.75$$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 11 Data Analysis and Statistics - Extension - Approximate Binomial Distributions and Test Hypotheses - Practice - Page 765: 5
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