Question 909846

total 17: 10W, 7M
(a) In how many different ways can a team of 6 be chosen from the class? 17C6
 (b) What if the team must contain exactly 4 women? (10C4)(7C2)
 (c) What if the team must contain at least 4 women? (10C4)(7C2)+(10C5)(7C1)+(10C6)(7C0)