In a survey, 250 adults and children were asked whether they know how to
swim. The survey data are shown in the relative frequency table.
What percentage of the people surveyed are adults?
![In a survey 250 adults and children were asked whether they know how to swim The survey data are shown in the relative frequency table What percentage of the pe class=](https://us-static.z-dn.net/files/d61/6116a0b6eb8ed1f27e1bec9180603fd3.png)