

1. 
Find the mean of {3, 8, 10, 1, 25}. 


A. 
9 
B. 
8 


C. 
1 
D. 
9.4 


Hint 


2. 
Find the median of {55, 21, 21, 69, 71}. 


A. 
21 
B. 
71 


C. 
47.4 
D. 
55 


Hint 


3. 
The mean is the _______ of a set of numbers. 


A. 
highest number 
B. 
arithmetic average 


C. 
most frequent 
D. 
middle number 


Hint 


4. 
Find the mode of {2, 2, 3, 9, 7, 9, 3, 7, 3}. 


A. 
7 
B. 
5 


C. 
2 
D. 
3 


Hint 


5. 
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 
B. 
33 


C. 
32.6 
D. 
31 


Hint 


