Red Blood Cell Count Use the normal distribution in Exercise 16.

(a) What percent of the adult males have a red blood cell count less than 5.75 million cells per microliter?

(b) What percent of the adult males have a red blood cell count between 4.75 and 5.25 million cells per microliter?

(c) Out of 500 randomly selected adult males, about how many would you expect to have a red blood cell count greater than 5.0 million cells per microliter?

Answer the questions about the specified normal distribution.

Data from Exercises 16

A member is selected at random from the population represented by the graph. Find the probability that the member selected at random is from the shaded region of the graph. Assume the variable x is normally distributed.

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Red Blood Cell Count in a Population of Adult Males 4.5