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Question

A number is chosen at random from 1 to 50. Find the probability of selecting prime numbers.

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Solution

The prime numbers between 1 and 50 are :2, 3, 5, 7, 11, 13, 17, 19, 23, 19, 31, 37, 41, 43, 47.Number of prime numbers between 1 and 50 = 50Number of favourable outcomes = 15Total possible outcomes = 50Probability of getting a prime number = Number of favourable outcomesTotal possible outcomesProbability of getting a prime number = 1550 = 325

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