Answer
σ = 2
Work Step by Step
The difference between the mean and inflection points is the standard deviation. Here, we have: 7-5 = 2.
Statistics: Informed Decisions Using Data (4th Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0321757270
ISBN 13:
978-0-32175-727-2
Chapter 7 - Review - Test - Page 395: 1b
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