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Science and technology

1/3

The prime numbers between 1 and 50 are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47 Total number of primes is 15, numbers containing digit 1 is 5, so the probability is 5/15=1/3

50% . The prime numbers are 1, 2, 3, 5, 7, 11, 13, 19, 23, 31, 37, 41, 43 and 47. =14x Of these 1, 11, 13, 17, 19, 31 and 41 have 1 as digit. = 7x Thus 7/14 = 50%