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May 21st, 2009, 11:29 AM  #11  
Newbie Joined: May 2009 Posts: 6 Thanks: 0  Re: Help with probability problem. Quote:
 
May 23rd, 2009, 01:45 AM  #12  
Global Moderator Joined: Dec 2006 Posts: 20,270 Thanks: 1958  Quote:
The answer ought to state that n is the number of men in the population. Since the question asked for the total population, the final answer should be 3n, i.e., 21.  

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