

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


A. 
factorial 
B. 
permutation 


C. 
outcome 
D. 
combination 


Hint 


2. 
How many ways can 3 CDs be selected from a stack of 7 different CDs? 


A. 
6 
B. 
35 


C. 
245 
D. 
5040 


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; 210 
B. 
combination; 210 


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


Hint 


4. 
You have an assignment for an art class to paint a painting using only four colors. Visiting an art store, you find 20 colors from which to choose. How many different combinations of colors are there? 


A. 
24 
B. 
116,280 


C. 
4,845 
D. 
74 


Hint 


5. 
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 committee can choose a president, vicepresident, and treasurer. 


C. 
The number of ways a coach can choose 3 cocaptains for a soccer team. 


D. 
The number of ways 3 books can be displayed in a store window. 


Hint 


