Z is a standard normal random variable. What is the value of Z if the area between -Z and Z is 0.754?
A)0.377
B)0.123
C)2.16
D)1.16

Name: Z is a standard normal random variable. What is the value of Z if the area between -Z and Z is 0.754? A)0.377 B)0.123 C)2.16 D)1.16
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Question

Quizplus · Accepted Answer

The area between -Z and Z is 0.754, which means the area in each tail is (1-0.754)/2 = 0.123. Looking up 0.123 in the standard normal distribution table gives a Z value of approximately 1.16.

Z Is a Standard Normal Random Variable