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All the colors in (Posted on 2010-04-26) Difficulty: 3 of 5
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?

See The Solution Submitted by Ady TZIDON    
Rating: 5.0000 (1 votes)

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Solution Solution (using Excel) | Comment 18 of 21 |
There are 4^7 combinations (16384).  Of these, there are 8400 combinations which contain all four colors.  This yields a probability of 51.2695 %.
  Posted by hoodat on 2010-05-03 02:03:31
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