Thank you Agnishom! Sorry, I went back to look at the documents and it said A is correct, which is 16 2/3%!

Agnishom

2012-11-24 13:19:58

Probability that the chosen one is a boy =

Probability that the chosen one wears glasses = Probability that the chosen one is both a boy and wears glasses = (Probability of being a boy) * (Probability of a boy to wear glasses) =

infinitebrain

2012-11-24 11:25:19

Six boys and twelve girls are in a senior class.Half the boys and 25% of the girls wear glasses.What is the chosen probability that a student chosen randomly is a boy,wears glasses,or both? I know the answer is 50%, but could someone could explain to me clearly how you get that answer? Thanks!