There are 7 women and 5 men in a department. four people are needed for a committee.a.in how many ways can a committee of 4 people be selected?b.in how many ways can this committee be selected if there must be exactly 2 men and 2 women on the committee?c.in how many ways can this committee be selected if there must be at least 2 women on the committee?
Accepted Solution
A:
A. 4 men , 4 women, 3 men, 1 women, 3 women , 1 men B. Both groups of 2 C. then find 2 men