<PRE><B>Question 260059</B>
The table below describes the smoking habits of a group of asthma sufferers.

Gender - Non Smoker - light Smoker - heavy Smoker - Total
Men-----	432	35------	31	498	
Women===	438	39------	43	520	
Total---	870	74------	74	1018	

a.  If a person is randomly selected, find the probability that he or she is not a light smoker. (1018-74)/1018
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b.  If a person is randomly selected, find the probability of getting a woman given that she is a nonsmoker. (438/870)
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c.  Assuming we were to consider a random sample of 13,000 people, how many would you predict are men who are heavy smokers based on the results given here? 
P(heavy smoker) = 74/1018
Ans: # of heavy smokers out of 13000 = (74/1018)(13000) = 945
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Cheers,
Stan H. 
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