The table below describes the smoking habits of a group of a…
The table below describes the smoking habits of a group of asthma sufferers Non-smoker Light-smoker Heavy-smoker Total Men 330 78 117 525 Women 305 90 80 475 Total 635 168 197 1000 a) If one of the 1000 subjects is randomly selected, what is the probability that the person is a light-smoker? b) If one of the 1000 subjects is randomly selected, what is the probability that the person is a woman or light-smoker? c) If one of the 1000 subjects is randomly selected, what is the probability that the person is a light-smoker given that the person is a woman? d) If two different subjects are randomly selected, find the probability that they are both light-smokers.
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