Elementary Statistics (12th Edition)

Published by Pearson
ISBN 10: 0321836960
ISBN 13: 978-0-32183-696-0

Chapter 6 - Normal Probability Distributions - Review - Chapter Quick Quiz - Page 315: 7

Answer

0.0158.

Work Step by Step

$z=\frac{value-mean}{standard \ deviation}=\frac{5.4-4.577}{0.382}=2.15.$ Using the table, the probability of z being more than 2.15 is equal to 1 minus the probability of z being less than 2.15, which is: 1-0.9842=0.0158.
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