Re: Daily question

Posted by varun on Feb 18, 2009; 6:40pm
URL: http://discussion-forum.276.s1.nabble.com/Daily-question-tp2328964p2348612.html

3. p(both are boys / atleast one of them is boy)= 1/3

  p(both boys /atleast one girl) =0

4.p(that both of them have infections after 2 days)=0.5