Re: The odds of trips.
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Make it simpler please. Spell it out. What does the "C" stand for? What does "N" stand for? What does "R" stand for?
Is "Combin" short for "possible combinations" or does it mean to "combine two numbers or probabilities" You need to define your variables.
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You're awfully demanding! LOL...I don't *need* to define anything, C(N,R) is standard notation. C stands for Combinations. C(N,R) is the Number of ways to choose R items from N items. So C(49,2) is the number of combinations you can have if you select two items from a group of 49. Order doesn't matter...so item #12 then item #13 is the same as item #13 then item #12.
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