Seven sportsmen (named A,B,C,D,E,F and G) buy 7 hats choosing randomly out of 4 available colors (say G,R,W and Y).
What is the probability that all the colors were chosen?

(In reply to Solution by John zadeh)

Totally wrong-see other posts.

Apply your reasoning to 4 sportsmen and 4 colors-

Ady 

Edited on April 27, 2010, 8:07 pm

Posted by Ady TZIDON on 2010-04-27 19:38:36