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October 31st, 2013, 04:50 PM  #1 
Senior Member Joined: Oct 2009 Posts: 895 Thanks: 1  From a city population , the probability of selecting i ) a
From a city population , the probability of selecting i ) a male or a smoker is 7/10 ii) a male smoker is 2/5 iii) a male if smoker is already selected is 2/3 Find the probability of selecting a ) a non smoker b ) a male c ) a smoker if a make is first selected 
October 31st, 2013, 06:17 PM  #2 
Senior Member Joined: Sep 2012 From: British Columbia, Canada Posts: 764 Thanks: 53  Re: From a city population , the probability of selecting i
Use the formulas and 
October 31st, 2013, 11:22 PM  #3 
Senior Member Joined: Oct 2009 Posts: 895 Thanks: 1  Re: From a city population , the probability of selecting i
Hi As I know there is some words that will change the formula what is that words ? 

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