

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


A. 
combination 
B. 
permutation 


C. 
outcome 
D. 
factorial 


Hint 


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


A. 
252 
B. 
30,240 


C. 
10 
D. 
120 


Hint 


3. 
While at a local video rental store, 5 movies catch your eye, but you only want to rent 2. How many combinations are there? 


A. 
10 
B. 
20 


C. 
5 
D. 
2 


Hint 


4. 
Which situation is a permutation? 


A. 
The number of ways 8 students can finish first, second, or third place at the Math Olympiad. 


B. 
The number of ways each person can shake hands with the other 11 people in the room. 


C. 
The number of games it would take to start 5 different basketball players from a team of 10. 


D. 
The number of ways you can choose 3 hot dog toppings from a total of 5. 


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. 
45 


C. 
30 
D. 
120 


Hint 


