A die is rolled. If the outcome is an odd number, what is the probability that it is prime?

Question

Philoid · Accepted Answer

Total outcomes when a die is rolled = {1,2,3,4,5,6} = 6

A = outcome is odd number = {1,3,5} = 3

Hence P(A) =

B= Outcome is prime number = { 2,3,5) = 3

Hence P(B) =

(A B) = outcome is odd number and also prime number = {3,5} =2

Hence P(A B) =

We require, =

(answer)