1.	An arrangement in which order is not important is a(n) ________.
		A.	permutation	B.	outcome
		C.	factorial	D.	combination
		Hint
	2.	From a group of six students, four are to be chosen to form a committee. In how many ways can the committee be chosen?
		A.	720	B.	30
		C.	360	D.	15
		Hint
	3.	How many ways can 3 CDs be selected from a stack of 7 different CDs?
		A.	6	B.	5040
		C.	35	D.	245
		Hint
	4.	Which situation is a combination?
		A.	The number of ways 50 people can line up to enter a concert hall.
		B.	The number of ways a coach can choose 3 co-captains for a soccer team.
		C.	The number of ways a committee can choose a president, vice-president, and treasurer.
		D.	The number of ways 3 books can be displayed in a store window.
		Hint
	5.	Ten students are playing in a chess tournament. If each student plays every other student once, how many total games are played?
		A.	90	B.	120
		C.	30	D.	45
		Hint