SOLUTION: What is the probability of choosing 3 people at random from a group of 20 people.

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Question 616742: What is the probability of choosing 3 people at random from a group of 20 people.
Answer by stanbon(75887) About Me  (Show Source):
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What is the probability of choosing 3 people at random from a group of 20 people.
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There is only one set of 3 people that satisfies the selection process.
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There are 20C3 = 1140 sets of 3 people.
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P(pick a particular set of 3 from 20 ) = 1/1140
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cheers,
Stan H.
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