

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


A. 
9 
B. 
1 


C. 
8 
D. 
9.4 


Hint 


2. 
Find the mode of {325, 100, 115, 621, 325, 325, 100}. 


A. 
100 
B. 
325 


C. 
115 
D. 
273 


Hint 


3. 
You have scores of 62, 75, and 90 on three of your history exams. What do you need to get on your fourth exam in order to have a mean of 80? 


A. 
93 
B. 
100 


C. 
80 
D. 
97 


Hint 


4. 
Find the median of {67, 24, 98, 15, 76, 44}. 


A. 
55.5 
B. 
54 


C. 
67 
D. 
44 


Hint 


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


A. 
highest number 
B. 
arithmetic average 


C. 
most frequent number 
D. 
middle number 


Hint 


