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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