If the salaries are normally distributed with a standard


1. The average salary for graduates entering the actuarial field is $40,000 (). If the salaries are normally distributed with a standard deviation of $5000 (σ = 5000), find the probability that:

a. An individual graduate (n = 1) will have a salary over $44,500: P(X > 44,500).

b. A group of nine graduates (n = 9) will have an average over $44,500: P()

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