Monday, December 21, 2009

Can someone please show me exactly how to figure this probability problem out?

There are 15 boys and 30 girls. 10 are pulled from the group. What is the probability that EXACTLY 3 of the 10 will be boys?Can someone please show me exactly how to figure this probability problem out?
(15C3) * (30C7) / (45C10)


= (455) * (2035800) / 3190187286


鈮?0.29.
  • How do you add message boards to a website
  • No comments:

    Post a Comment