SOLUTION: find the value of P(|X|<28) given that X is normally distributed with mean 25 and standard deviation 3

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Question 767668: find the value of P(|X|<28) given that X is normally distributed with mean 25 and standard deviation 3
Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
we need to calculate the z-value associated with 28 and then consult the table of z-values to determine the P(|X|<28)
note that the |X| is always > 0
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z-value = (28 - 25) / 3 = 3/3 = 1
P(|X|<28) = .84