# Question

For a random variable that is normally distributed, with μ = 200 and σ = 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.

a. Greater than 210.

b. Between 190 and 230.

c. Less than 225.

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