Statistics (12th Edition)

Published by Pearson
ISBN 10: 0321755936
ISBN 13: 978-0-32175-593-3

Chapter 5 - Continuous Random Variables - Exercises 5.20 - 5.52 - Learning the Mechanics: 5.25e

Answer

0.6826

Work Step by Step

Using Table-IV, we have: $P(z \leq -1) = 0.8413$ $P(z \geq 1) = 0.1587 $P(-1 \leq z \leq 1) = 0.8413 - 0.1587 = 0.6826
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