Number of girls in a family | |||

Number of families |

**Find the probability of a family, having**

**(iii) no girl**

**Solution:-**

The extent to which an event is likely to occur and measured by the ratio of the favorable cases to the whole number of cases possible, the chance that a given event will occur.

(iii) Number of families that having no girls =

Then, required probability = Number of families that having no girl /total number of families

=

=

=