# Question: Using historical records the personnel manager of a plant has

Using historical records, the personnel manager of a plant has determined the probability distribution of X, the number of employees absent per day. It is

a. Find the following probabilities.

P12 ≤ X ≤ 52

P(X > 5)

P(X < 4)

b. Calculate the mean of the population.

c. Calculate the standard deviation of thepopulation.

a. Find the following probabilities.

P12 ≤ X ≤ 52

P(X > 5)

P(X < 4)

b. Calculate the mean of the population.

c. Calculate the standard deviation of thepopulation.

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