1.

An integer in picked from 1 to 20, both inclusive. Find the probability that it is a prime.

Answer»

Let E be the event that the number picked from 1 to 20 is a prime and S be the sample space.

∴ n(S) = 20C1 = 20

E = {2, 3, 5, 7, 11, 13, 17, 19}

n(E) = 8

P(E) = n(E)/n(S)  = 8/20  = 2/5



Discussion

No Comment Found

Related InterviewSolutions