Solve the Problem $\mathrm { P } ( - \mathrm { a } < \mathrm { z } < \mathrm { a } ) = 0.4314$

question 72

Multiple Choice

Solve the problem.
-Assume that z scores are normally distributed with a mean of 0 and a standard deviation of 1. If $\mathrm { P } ( - \mathrm { a } < \mathrm { z } < \mathrm { a } ) = 0.4314$ find a.

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

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