The data in the following table show the association between cigar smoking and d

Question

The data in the following table show the association between cigar smoking and death from cancer for 133,247 men. Note: current digar smoker means cigar smoker at time of death. EEB Click the icon to view the table (a) If an individual is randomly selected from this study, what is the probability that he died from cancer? b) If an individual is randomly selected from this study, what is the probability that he was a current cigar smoker? c) If an individual is randomly selected from this study, what is the probablity that he died from cancer and was (a) If an individual is randomly selected from this study, what is the probability that he died from cancer or was a (a) P(died from cancer) a current cigar smoker? (Round to three decimal places as needed.) (b) P(current cigar smoker) Round to three decimal places as needed.) (c) Pidied from cancer and current cigar smoker) (Round to three decimal places as needed.) (a) P(died from cancer or current cigar smoker) Round to three decimal places as needed.) 2 6

Explanation / Answer

Died from cancer

Did not die from cancer

Total

Never smoked cigars

505

119841

120346

Former cigar smoker

52

6378

6430

Current cigar smoker

107

6364

6471

Total

664

132583

133247

A. P(Died from cancer)=664/133247=0.005

B. P(Current cigar smoker)=6471/133247=0.048

C. P(Died from cancer and current cigar smokers)=107/133247=0.001

D.  P(Died from cancer OR current cigar smokers)=(664+6471-107)/133247=7028/133247=0.053

Died from cancer

Did not die from cancer

Total

Never smoked cigars

505

119841

120346

Former cigar smoker

52

6378

6430

Current cigar smoker

107

6364

6471

Total

664

132583

133247

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