

1. 
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. 
100 
B. 
80 


C. 
93 
D. 
97 


Hint 


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


A. 
highest number 
B. 
arithmetic average 


C. 
middle number 
D. 
most frequent 


Hint 


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


A. 
9 
B. 
12 


C. 
13 
D. 
10 


Hint 


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


A. 
44 
B. 
55.5 


C. 
54 
D. 
67 


Hint 


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


A. 
highest number 
B. 
most frequent number 


C. 
middle number 
D. 
arithmetic average 


Hint 


