I'm afraid this is wrong - you shouldn't distinguish between Bb and bB. In this problem, they are not different states, so counting them messes up your probabil

I'm afraid this is wrong - you shouldn't distinguish between Bb and bB. In this problem, they are not different states, so counting them messes up your probability calculation. Someone had a nice link higher up: http://mikeschiraldi.blogspot.com/2011/11/tuesday-boy-problem-in-under-300-words.html http://mikeschiraldi.blogspot.com/2011/11/tuesday-boy-proble...