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In a group of 100 students, 30 are men and 70 are women. Among them, 6...

In a group of 100 students, 30 are men and 70 are women. Among them, 6 men are smokers and 7 women are smokers. If a person is randomly selected,

a). Find the probability that the person is a smoker.

b). Find the probability that this person is a male smoker. c). Find the probability that this person is a male knowing that this person is a smoker.

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