Answer
$p(z\lt-1.56)=.0594$
Work Step by Step
According to Table IV, page 773:
$p(0\lt z\lt1.56)=.4406$
$p(z\lt-1.56)=p(z\gt1.56)=1-p(z\lt1.56)=1-(.5+.4406)=1-.9406=.0594$
Statistics (12th Edition)
by McClave, James T.; Sincich, Terry T.
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 - Page 241: 5.26b
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