**1500 families with 2 children were selected randomly, and the following data were recorded:**

**Compute the probability of a family, chosen at random, having**

**(i) 2 girls (ii) 1 girl (iii) No girl**

**Also check whether the sum of these probabilities is 1.**

**Answer (i)**

Probability of a family, chosen at random having 2 girls children

= **(Number of families having 2 girls children/ Total number of families)**

**Answer (ii)**

Probability of a family, chosen at random having 1 girl child

= **(Number of families having 1 girl child/ Total number of families)**

**Answer (iii)**

Probability of a family, chosen at random having no girl child

= **(Number of families having no girl child/ Total number of families)**

**Sum of all the probabilities **