If I put nine pieces of paper, with a digit from 1-9 written on each one, into a hat, and pull 3 out without replacement, what is the likelihood that I will select three numbers that result in a winning tic-tac-toe?

 1 | 2 | 3 
---+---+---
 4 | 5 | 6 
---+---+---
 7 | 8 | 9 

(In reply to answer by neshal)

You lost me. How come you got a different answer to everyone else (including me...I got 2/21) ?? Is everyone else wrong?

Posted by Nosher on 2004-08-02 22:40:55