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If Z Is a Standard Normal Random Variable, Find the Following

Question 71

Essay

If Z is a standard normal random variable, find the following probabilities.
a. P(Z ≤\leq 2.33).
b. P(Z ≥\geq 1.65).
c. P(-0.58 ≤\leq Z ≤\leq 1.58).
d. P(Z ≤\leq -2.27).

Correct Answer:

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a. 0.9901....

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