Question: For a random variable that is normally distributed, with 5 200 and 5 20, determine the probability that a simple random sample of

For a random variable that is normally distributed, with 5 200 and 5 20, determine the probability that a simple random sample of 4 items will have a mean that is

a. greater than 210.

b. between 190 and 230.

c. less than 225.

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