What is the probability that a man and woman selected at : PS Archive
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# What is the probability that a man and woman selected at

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What is the probability that a man and woman selected at [#permalink]

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10 Dec 2007, 07:50
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What is the probability that a man and woman selected at random amongst 4 married couples happen to be married to each other?
A) 1/16
B) 1/4
C) 1/7
D) 4C2/16C2
E) 4/16C2
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10 Dec 2007, 08:25
Hi,
you can select 2 people out of 8 in 28 ways. When these people are not married the prob is 8X6/2=24 ways. The prob that they are married is 4/28=2/14
10 Dec 2007, 08:25
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