Assume That Z Scores Are Normally Distributed with a Mean

question 5

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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