<PRE><B>Question 748711</B>
Two dice are rolled. What is the probability the sum of the two dice will be a prime number?
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sum = 3: 1/2 , 2/1-----2 ways
sum = 5: 1/4,2/3,3/2,4/1----4 ways
sum = 7: 1/6,2/5,3/4,4/3,5/2,6/1----6 ways
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Total # of ways to succeed: 2+4+6 = 12
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# of possible sums: 36
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P(prime sum) = 12/36 = 1/3
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