Re: probaility qns dse2013

Posted by The Villain on Mar 29, 2014; 7:53pm
URL: http://discussion-forum.276.s1.nabble.com/probaility-qns-dse2013-tp7585695p7585696.html

q46
@Ben ...I did it this way.


I get 2 letters per day.
Let M denote letter by male
n F denote letter by female
 so possible Outcomes {MM,FF,MF,FM}
I have already recieved the first letter which is by a female.
P(2nd is female | 1st is  female)
=(1/4)/(2/4)=1/2