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4 June, 17:47

A jury consists of five men and seven women. three are selected at random for an interview find the probability that all three are men.

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  1. 4 June, 18:16
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    There are 5+7 = 12 total people.

    The probability that the first person picked is a man is 5/12.

    P{2nd person picked is also a man} = 4/11

    P (3rd person is also a man) = 3/10

    P{all 3 are men} = (5/12) (4/11) (3/10) = 60/1320 = 1/22 = 0.04545
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