Explanation Approach: The normal curve is symmetric with respect to its mean. The total area under the curve is 1. Calculation: Given that z = − 0 .64 . To find the area below z = − 0 .64 , find the area between z = 0 and z = 0 .64 . Due to symmetric property of standard normal curve, the area to the right and left are the same. Thus, area between z = 0 and z = − 0 .64 and the area between z = 0 and z = 0 .64 are the same. Find the z -score from the Table 14.19 for standard normal distribution given in the text. The corresponding value of z = 0 is 0. To find the corresponding value of z = 0 .64 , use the row for z = 0.6 and the column labelled 0.04. The corresponding value of z = 0

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ISBN: 9780134506470

Author: Pirnot

Publisher: PEARSON

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Chapter 14.4, Problem 24E

To determine

To find:

The percent of the area below z=−0.64.

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Chapter 14.4, Problem 23E

Chapter 14.4, Problem 25E

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