

1. 
A music store has 2 new pop CDs, 3 new rap CDs, and 2 new rock CDs in this week. If you purchase 1 of each type, how many combinations are there? 


A. 
12 
B. 
15 


C. 
7 
D. 
10 


Hint 


2. 
Four coins are tossed. How many outcomes have two tails and two heads? 


A. 
10 
B. 
6 


C. 
8 
D. 
16 


Hint 


3. 
A sporting goods store sells ball caps in four sizes: S, M, L, and XL. Each hat is available in 5 colors and can be purchased with or without a logo. Find the number of combinations available. 


A. 
11 
B. 
10 


C. 
20 
D. 
40 


Hint 


4. 
A computer store offers a computer with a 15, 17, or 19inch monitor and an inkjet or laser printer. Make a tree diagram to show the different ways a computer can be sold with a monitor and printer. 


A. 



B. 



C. 



D. 



Hint 


5. 
Suppose you toss three quarters. What is the probability that exactly two of the coins will show tails? 


A. 

B. 



C. 

D. 



Hint 


