Asked by AJ
A pile of cards contains 3 diamonds, 4 hearts, and 2 spades. Marianna randomly selects 2 cards without replacing the first. What is P(hearts, then spades)
P.S: I know the answer is 1/9, but I don't know how to solve that.
P.S: I know the answer is 1/9, but I don't know how to solve that.
Answers
Answered by
Anonymous
9 cards with 4 hearts --> 4/9 and 8 cards left
now 8 cards with 2 spades ---> 2/8 = 1/4
so
4/9 * 1/4 = 1/9 sure enough
now 8 cards with 2 spades ---> 2/8 = 1/4
so
4/9 * 1/4 = 1/9 sure enough
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