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Question
Find the probability that a number selected at random from the numbers 1, 2, 3, ..., 35 is a prime number.
Sum
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Solution
Total no. of possible outcomes = 35 {1, 2, 3, ..., 35}
E ⟶ event of getting a prime no.
No. of favourable outcomes = 11 {2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31}
Probability, P(E) =`"No. of favorable outcomes"/"Total no. of possible outcomes"`
= `11/35`
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