Posted by Tasha on Sunday, May 23, 2010 at 1:01pm.
0% Nothing even is prime, because all even numbers can be divided by 2.
2 is the only prime even number. Since it is only 1 of the 11 possibilities, the probability = 1/11
If you know that the number will be prime, than you only count the prime numbers; because there are 6 prime numbers in 1-11 and only one of those is even, the answer is 1/6.
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