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?

(In reply to re(2): The full tournament by e.g.)

Minutes later after my posting, and still thinking, I figured this that in pointed out in your comment. But, here in Brasil, it was too late, and I decided to post today. Tk you, anyway!

Posted by pcbouhid on 2005-08-05 14:22:49