SOLUTION: Five cards are dealt at random from a regular deck of 52 playing cards. Find the probability that three are sevens.

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Question 257469: Five cards are dealt at random from a regular deck of 52 playing cards. Find the probability that three are sevens.
Answer by drk(1908) About Me  (Show Source):
You can put this solution on YOUR website!
This is a combination problem. We want 3 of the 4 sevens and don't care about the other cards. SO, we have
p(3 sevens) = (4c3)*(48c2) / (52c5) ~ 0.001736