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A recent survey by the American Cancer Society shows that the probability that someone is a smoker is P(S) = 0.31. It has also determined that the probability that someone has lung cancer, given that he or she is a smoker, is P(LC|S) = 0.226. What is the probability (rounded to the nearest hundredth) that a random person is a smoker and has lung cancer P(S ∩ LC)?

 

A. 0.08 

B. 0.73 

C. 0.07 

D. 0.25

 Apr 11, 2016
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the answer is the prob. of a smoker (31/100) * the prob. of a person getting lung cancer from smoking (23/100)

 Apr 11, 2016

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