

1. 
An arrangement in which order is not important is a(n) ________. 


A. 
factorial 
B. 
permutation 


C. 
combination 
D. 
outcome 


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. 
360 
B. 
720 


C. 
15 
D. 
30 


Hint 


3. 
An art gallery has 10 paintings to display. Six of the paintings are to be used for a new exhibit. Is this situation a permutation or combination? How many choices of paintings are possible? 


A. 
permutation; 151,200 
B. 
permutation; 210 


C. 
combination; 210 
D. 
combination; 151,200 


Hint 


4. 
If you have 10 CDs, and you want to take three of them with you on a road trip, how many different possibilities are there for which three you bring? 


A. 
120 
B. 
10 


C. 
3 
D. 
604,800 


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. 
45 
B. 
90 


C. 
120 
D. 
30 


Hint 


