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normally distributed random variable

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Hello All. Can someone help me figure out this problem? I can't seem to understand the explanation. Thanks!


The probability that a normally distributed random variable will be more than two standard deviations above its mean is:


A)

0.9772.


B)

0.0228.


C)

0.4772.


Explanation

1 – F(2) = 1 – 0.9772 = 0.0228.

(Study Session 3, Module 9.2, LOS 9.k)


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