Answer
B
Work Step by Step
The standard deviation of the Normal distribution in Figure 3.15 is 3.
The Basic Practice of Statistics 7th Edition
by Moore, David S.; Notz, William I.; Fligner, Michael A.
Published by
W. H. Freeman
ISBN 10:
146414253X
ISBN 13:
978-1-46414-253-6
Chapter 3 - The Normal Distributions - Check Your Skills - Page 95: 3.17
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