5) Jaimie tells 10 of his friends that he just won a vacation to Disneyworld. Unfortunately, he then finds out he can only take 3 of them. He decides to let the other7 down easy by telling them the
large number of ways he could've picked 3 of them to take.
a. Would this be a combination or permutation problem? Why?
b. Figure out how many ways Jaimie can take 3 out of the 10 friends.