The data in the following table show the association between cigar smoking and death from cancer for 133,053 men. Note: current cigar smoker means cigar smoker at time of death. Died from Cancer Did Not Die from CancerNever smoked cigars 541 119,955Former cigar smoker 98 6,749Current cigar smoker 130 5,580(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 probability that he died from cancer and was a current cigar smoker?(d) If an individual is randomly selected from this study, what is the probability that he died from cancer or was a current cigar smoker?

Answered: The data in the following table show…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The data in the following table show the association between cigar smoking and death from cancer for 133,053 men. Note: current cigar smoker means cigar smoker at time of death.

Died from Cancer Did Not Die from Cancer
Never smoked cigars 541 119,955
Former cigar smoker 98 6,749
Current cigar smoker 130 5,580

(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 probability that he died from cancer and was a current cigar smoker?
(d)	If an individual is randomly selected from this study, what is the probability that he died from cancer or was a current cigar smoker?

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From the provided information,

	Died From Cancer	Did not Die from Cancer	Total
Never smoked cigars	541	119955	120496
Former cigar smoker	98	6749	6847
Current cigar smoker	130	5580	5710
Total	769	132284	133053