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If X Is Normally Distributed with Mean 12 and Standard

Question 3

Multiple Choice

If x is normally distributed with mean 12 and standard deviation 2,then P(x ≤ 9) is

A) P(z ≤ 9/10) .
B) P(z ≤ −3/2)
C) P(z ≤ 2/3)
D) P(z ≤ −3/4)

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