A baby is added to a hospital nursery. Before the baby was added there were two boys in the nursery and an uncounted number of girls. After the new baby is added a baby is selected at random among all the babies. The selected baby is a boy.
What is the probability that the added baby was a girl?
obvioulsy 1/2. THERE ARE ONLY 2 GENDERS. also, they have equal probability. x+y * x+x = xx + xx + xy + xy 1/2 chance for male (xy), 1/2 chance for female (xx) DUUUUHH!!!!!!!! well, i can't believe there's no solution yet,,,
Edited on October 19, 2003, 11:56 am
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Posted by iggyb387
on 2003-10-15 20:43:25 |
this is too easy, so easy that it scares me and i probably will mess up
