Thread: Simple Question
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Old 10-10-2005, 02:29 PM
Tom1975 Tom1975 is offline
Senior Member
Join Date: Jun 2005
Posts: 132
Default Re: Simple Question

For some reason I can't get the right answer for this.

Suppose a vase has 15 balls, of which 8 are red and seven are black.

In how many ways can 5 balls be chosen so that at least two are red?

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This assumes it doesn't matter which order the balls are chosen.
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