Essentials of Statistics (5th Edition)

Published by Pearson
ISBN 10: 0-32192-459-2
ISBN 13: 978-0-32192-459-9

Chapter 6 - Normal Probability Distributions - 6-2 The Standard Normal Distribution - Page 251: 45

Answer

0.6826

Work Step by Step

The probability of z being larger than -1 and smaller than 1 is the probability of z being smaller than 1 minus the probability of z being smaller than -1: 0.8413-0.1587=0.6826.
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