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# Last year, at Northern Manufacturing Company, 200 people had colds during the year.

18. Last year, at Northern Manufacturing Company, 200 people had colds during the year. One hundred fifty-five people who did no exercising had colds, and the remainder of the people with colds were involved in a weekly exercise program. Half of the 1,000 employees were involved in some type of exercise.
(a) What is the probability that an employee will have a cold next year?
(b) Given that an employee is involved in an exercise program, what is the probability that he or
she will get a cold next year?
(c) What is the probability that an employee who is not involved in an exercise program will get a cold next year?
(d) Are exercising and getting a cold independent events? Explain your answer.

155 of the 200 did not exercise and got a cold. 45 of the 200 exercised and got a cold. a)200 people have cold this... View the full answer

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