

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


A. 
55 
B. 
21 


C. 
71 
D. 
47.4 


Hint 


2. 
What is the median for a set of quiz scores? 





A. 
17 
B. 
15 


C. 
16 
D. 
13 


Hint 


3. 
Find the mean of {15, 7, 9, 25, 4}. 


A. 
12 
B. 
13 


C. 
10 
D. 
9 


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. 
32.6 
B. 
33 


C. 
31 
D. 
32 


Hint 


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


A. 
most frequent number 
B. 
middle number 


C. 
highest number 
D. 
arithmetic average 


Hint 


