Question

A drawer contains 7 blue socks and 8 white socks. If Tiffany pulls out one sock and without replacing it, pulls out a second sock, what is the probability that the first one is white and the second one is blue?

Answer 1

So, starting off with 15 socks in the drawer and 8 are white means that the prob. of the first sock being white is 8/15, but without replacing, the next sock has a 1/2 chance of being blue since there are now 14 socks, and 7 socks are blue and 7 are white.