Number of girls in a family | |||

Number of families |

Find the probability of a family, having

(i) girl (ii) girls

**Solution:-**

Probability is the branch mathematics concerning numerical description of how likely an event is to occur, or how likely it is that a proposition is true.

In the question it is given that, total number of families =

i. Number of families that having girl =

Then, required probability = Number of families that having 1 girl

/total number of families

=

=

=

ii. Number of families that having girls =

Then, required probability = Number of families that having girls

/total number of families

=

=

=