Question

numbers 1 to 10 are written on ten separate slips,kept in a box and mixed well.one slip is drawn from the box without looking into it.what is the probability of getting a prime number?

Answer 1

Prime number = {1, 2, 3, 5, 7}

n(A) = 5

Sample point = n(S) = 10

Opportunity = n(A)/n(S)

                     = 5/10

                     = 1/5