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Mathematics, 19.10.2021 14:50 carolinerosewillis
7. A study tracked a large group of people for 10 years. At the start of the study, 20% were heavysmokers (H), 30% were light smokers (L), and 50% were non-smokers (N).The interest of the study was whether the people in the study died during the study (D) or not die(Dc).The probability that a light smoker died during the study was twice that of the probability of anon-smoker dying. Also, the probability that light smoker died during the study was half that ofthe probability of a heavy smoker dying. A randomly selected person from the study died during the study. What is the probability that thisperson was a heavy smoker (given they died, what is the probability they were a heave smoker H)
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