Mathematics, 06.12.2019 13:31 heavenmckissack21

Five cards are selected without replacement from a pack of 52 playing cards. what is the probability of exactly 3 hearts?

i can find an equation for exactly 3 hearts, but i can't turn the other two cards in terms of combinatorics or permutations for some reason.

i've tried:
for the selection of exactly three hearts.

.

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