Given:
A committee has seven men and four women.
four people are selected to go to a conference
We will use the combinations as follows
the number of ways to choose the four people are:

The rule of combinations is:

so, the number of ways will be:

The number of ways to make a group of two men and two women will be:

So, the chance that the group is two men and two women =

so, the answer will be 7/33