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Asked Oct 25, 2019
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Tony and Maria are two star-crossed lovers trying to get on a committee of 4 people. If there are 9 people eligible for this committee, how many ways can exactly one of Tony and Maria be selected for the committee?

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There are total 9 persons and a committee of 4 people are selected. In this Exactly one member among To...

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2! 7! 2 x 35 70 X X 1! x (2 1)! 3! x (7 - 3)!

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Basic Probability

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