SOLUTION: There are 9 students in a class: 4 boys and 5 girls. If the teacher picks a group of 3 at random, what is the probability that everyone in the group is a girl?

Algebra ->  Permutations -> SOLUTION: There are 9 students in a class: 4 boys and 5 girls. If the teacher picks a group of 3 at random, what is the probability that everyone in the group is a girl?      Log On