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Assume That Z Scores Are Normally Distributed with a Mean

Question 30

Multiple Choice

Assume that z scores are normally distributed with a mean of 0 and a standard deviation of 1 . If $P ( - a < z < a ) = 0.4314$ find a .

A) -0.18
B) 0.3328
C) 0.57
D) 1.49

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