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mr Goodwill [35]

3 years ago

10

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

1 answer:

irga5000 [103]3 years ago

3 0

There are 13 total hearts in the deck, which leaves 39 non-hearts. You're drawing a hand of five cards, so the probability of getting exactly 3 hearts is

$\dfrac{\binom{13}3\binom{39}2}{\binom{52}5}=\dfrac{2717}{33320}$

as required.

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borishaifa [10]

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You can solve this by adding seven on both sides.
|x|-7=8
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Step-by-step explanation:

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