Question: For a random variable that is normally distributed, with 5 80 and 5 10, determine the probability that a simple random sample of

For a random variable that is normally distributed, with  5 80 and  5 10, determine the probability that a simple random sample of 25 items will have a mean that is

a. greater than 78.

b. between 79 and 85.

c. less than 85.

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