Posted by Diane on Sunday, August 29, 2010 at 11:02pm.
So we are looking for a sum of
2,3,5,7,or 11
number of ways for 2 is 1
number of ways for 3 is 2
number of ways for 5 is 4
number of ways for 7 is 6
number of ways for 11 is 2
so prob for a prime = (1+2+4+6+2)/36 = 5/12
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