Question

At the beginning of a certain study of a group of persons, 15% were classified as heavy smokers, 30% as light smokers, and 55% as nonsmokers. in the fiveyear study, it was determined that the death rates of the heavy and light smokers were five and three times that of the nonsmokers, respectively.arandomly selected participant died over the five-year period; calculate the probability that the participant was a nonsmoker.

Answer 1

9 non smoker were participants.........