

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


A. 
outcome 
B. 
permutation 


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. 
15 
B. 
360 


C. 
30 
D. 
720 


Hint 


3. 
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. 
10 
B. 
604,800 


C. 
3 
D. 
120 


Hint 


4. 
A group of 10 students is to be divided into 2 groups of 5. How many ways is this possible? 


A. 
10 
B. 
120 


C. 
30,240 
D. 
252 


Hint 


5. 
You have tests coming up soon in all your classes. You have six schoolbooks that you could take home, but only room for four in your backpack. How many different combinations of schoolbooks can you take home in your backpack? 


A. 
24 
B. 
4 


C. 
30 
D. 
15 


Hint 


