woodsc3039 woodsc3039

05-11-2017
Mathematics

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How to find probability with mean and standard deviation given?

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nicoawsomness nicoawsomness

05-11-2017

X is a normal random variable with a mean of 120 and a standard deviation of 20. Determine the probability that X is greater than 135. Problem 3.Find a value of c so that P( -c < Z < c) = .45.

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