A number is selected at random from the set {1, 2, 3, ........, 50}. The probability that it is a prime, is

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n(s) = 50 Prime numbers are = 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47 ∴ n(E) = 15 ∴ p(E) = 15/50 = 3/10 = 0.3

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