Question

Find the probability that a number selected at random from the numbers 1, 2, 3, ..., 35 is a Prime number

Answer 1

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