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Assume that the sick leave, X, taken by the typical worker per year has mean µ...

Assume that the sick leave, X, taken by the typical worker per year has mean µ = 10 and standard deviation σ = 2 measured in days. (A) Find the approximate probability that the number of sick days per year for a randomly selected employee from the firm exceeds 11? (B) Find the 90th percentile of the number of sick days per year.

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