Question

The Hernandez family has six

baby-sitters whom they call regularly.
Four of the baby-sitters are boys and
two are girls. If they randomly call
one of the baby-sitters, what is the
chance that it will be a boy?​

Answer 1

There is a
`(2)/(3)` chance that it will be a boy.

Explanation:

The total number of babysitters is six.

Four are boys, and two are girls. This means that there is a
`(4)/(6)` chance of the babysitter being a boy and a
`(2)/(6)` chance of the babysitter being a girl.

It becomes
`(2)/(3)` after being simplified (
`(4)/(6)` has a common factor of 2).