

1. 
Find the median of {55, 21, 21, 69, 71}. 


A. 
55 
B. 
21 


C. 
47.4 
D. 
71 


Hint 


2. 
The mean is the _______ of a set of numbers. 


A. 
most frequent 
B. 
arithmetic average 


C. 
middle number 
D. 
highest number 


Hint 


3. 
What is the median for a set of quiz scores? 





A. 
13 
B. 
17 


C. 
15 
D. 
16 


Hint 


4. 
Ben races motorcycles for fun. So far, his lap times, in seconds, are 32, 35, 33, and 32. What time must Ben get on his final lap for his average lap time to be 32.6? 


A. 
33 
B. 
32.6 


C. 
31 
D. 
32 


Hint 


5. 
The median is the __________ of a set of numbers. 


A. 
arithmetic average 
B. 
middle number 


C. 
most frequent number 
D. 
highest number 


Hint 


