SOLUTION: If the random variable X is normally distributed with a mean of 75 and a standard deviation of 8, then P(X ≥ 75) is: a.0.625 b.0.500 c.0.125 d.0.975

Algebra ->  Probability-and-statistics -> SOLUTION: If the random variable X is normally distributed with a mean of 75 and a standard deviation of 8, then P(X ≥ 75) is: a.0.625 b.0.500 c.0.125 d.0.975       Log On


   

Question 842286: If the random variable X is normally distributed with a mean of 75 and a standard deviation of 8, then P(X ≥ 75) is:
a.0.625
b.0.500
c.0.125
d.0.975
Answer by reviewermath(1029) About Me  (Show Source):
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Question:
If the random variable X is normally distributed with a mean of 75 and a standard deviation of 8, then P(X ≥ 75) is:
a.0.625
b.0.500
c.0.125
d.0.975
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Excel Formula: =1-normsdist((75-75)/8)
Answer: b.0.500