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What is the probability of rolling a prime number

Mathematics
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find the probability of rolling a prime number

Apr 23rd, 2015

On a single die, the prime numbers are 2,3, and 5.  So that's 3/6 = 1/2 probability.

With a pair of dice the possibilities are

1, 1

1, 2

2,1

1,4

4,1

2,3

3,2

3,4

4,3

1,5

5,1

2,5

5,2

1,6

6,1

5,6

6,5

So, that 17 different combination out of a possible 36 combinations

17/36













Apr 23rd, 2015

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