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OpenStudy (anonymous):
If a number is randomly chosen from the following list, what is the probability that the number is prime? [31, 59, 59, 81, 21, 34, 17, 2, 7, 79, 23, 73]
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OpenStudy (anonymous):
it is 8/12 = 2/3 because out of total 12 elements, 8 are prime numbers
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