Someone is asked to take a number from 1 to 100. The probability that it is a prime is ______.

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Someone is asked to take a number from 1 to 100. The probability that it is a prime is underlinebb($\frac{1}{4}$). Explanation: Total numbers of outcomes = 100 So, the prime numbers between 1 to 100 are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 56, 61, 67, 71, 73, 79, 83, 89 and 97. $\therefore$ Total number of possible outcomes = 25 $\therefore$ Required probability = $\frac{25}{100}$ = $\frac{1}{4}$

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