1 1 vote Probability + – akash.dinkar12 580 views answer comment Share Follow Print See all 3 Comments 3 3 Comments reply saxena0612 commented Oct 17, 2017 i edited by saxena0612 Oct 17, 2017 reply Follow flag 1/2=0.5. Being first event Boy there are two possibilities Either younger one is Boy or Girl Thus P(younger one is boy/given that older one is boy)=1/2. 2 2 replyShare joshi_nitish commented Oct 17, 2017 reply Follow flag P(bothboys/olderboy) = P(bothboys$\cap$olderboy)/P(olderboy) =(1/2*1/2)/(1/2*1/2 + 1/2*1/2) = 1/2 2 2 replyShare akash.dinkar12 commented Oct 17, 2017 reply Follow flag thanx... 0 0 replyShare Please log in or register to add a comment.
Best answer 2 2 votes Answer : C 1/2 we already know one is a boy. for both to be boys, younger one should also be boy. probability for younger one to be boy is 1/2 and that is total probability. junk_mayavi answered Oct 17, 2017 • selected Oct 17, 2017 by akash.dinkar12 junk_mayavi comment Share Follow 0 reply Please log in or register to add a comment.
