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

For a random variable that is normally distributed, with μ = 80 and σ = 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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