Assume that the probability of developing lung cancer in smokers is 15%; the probability of developing lung cancer in non-smoker
s is 1%; and the prevalence of smokers in the U.S. is 20%. If a person is diagnosed with lung cancer, what is the probability that he/she is a smoker?
1 answer:
Answer:0.789
Step-by-step explanation:
20 % person smokes and 80 % don't smoke
Probability that a smoker gets lung cancer=15%
Probability that a non smoker gets lung cancer is =1%
Thus
Probability if a person is diagnosed with cancer he/she is a smoker
P=
P=
P=
=0.789
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