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Old 01-11-2005, 04:20 PM
Cobra Cobra is offline
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Join Date: Nov 2004
Posts: 116
Default Re: What does choose mean and/or c(50,3)

The term c(50,3) or combin(50,3), or (50 choose 3) is the total number of three card combinations you could have using 50 cards. A combination is a group of three cards were order does not matter. That is AKQ of diamonds is the same as KQA of diamonds, etc.

You can get the answer in a program like excel ( that is the combin equation) otherwise c(50,3) is equal to

50!/(47!*3!) were ! means factorial. This simplifies to
50*49*48/3*2*1. If you wanted c(50,2) that would be
50*49/2*1.

I believe there was recently a more detailed discussion of this in the probability area.

Cobra
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