Assume Z is a standard normal random variable with P(-z

Name: Assume Z is a standard normal random variable with P(-z < Z < z) = 0.8764.What is z? A) 0.3764 B) 1.16 C) 1.54 D) 3.08
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Question

Assume Z is a standard normal random variable with P(-z < Z < z) = 0.8764.What is z?
A) 0.3764
B) 1.16
C) 1.54
D) 3.08

Quizplus · Accepted Answer

The probability P(-z < Z < z) = 0.8764 corresponds to the cumulative probability between -z and z for a standard normal distribution. Using a standard normal distribution table or calculator, z = 1.54 gives approximately this probability.

Assume Z Is a Standard Normal Random Variable with P(-Z