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Pair Playing Probability (Posted on 2005-08-02) Difficulty: 3 of 5
There are N players in a tennis tournament. Assuming the initial pairings are done randomly, what are the odds that a certain pair will play each other?

See The Solution Submitted by Old Original Oskar!    
Rating: 3.0000 (2 votes)

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Some Thoughts re: I undestood right? - no, WRONG. | Comment 3 of 32 |
(In reply to I undestood right? by pcbouhid)

Two problems: the odds of a person playing another in the first round are 1/(N-1) -- he will play someone, and there are N-1 other players -- so your answer isn't right.

And, I didn't say "the first round" but "in a tennis tournament"... so you should take into account the next rounds too!

  Posted by Old Original Oskar! on 2005-08-02 15:53:45

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