Question

From the information given, (a) construct the indicated sample space and (b) answer the probability question.

a. A couple planning to have three children.
b. Find the probability of having exactly one girl.

Answer 1

(a) 3 (b) 1/3

Explanation:

The probability is defined as the ratio of number of elements in event to the number of elements in sample space.

(a) As the total number of child is 3, so the number of elements in sample space = 3

(b) The sample space is { boy, boy, girl}

So, the probability is 1/3.