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What is the probability that a number selected from the numbers 1, 2, 3, 4, 5....16 is a prime number?

Correct Answer: 3/8

Explanation:

S = {1, 2, 3, ......16}
E = {2, 3, 5, 7, 11, 13}
∴ P(E) = n(E)/n(S) = 6/16= 3/8


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