

1. 
Refer to the set of data below. If 15 were removed from the set of data, which values would change? 





A. 
range 
B. 
mean, median, and range 


C. 
range and mean 
D. 
mode 


Hint 


2. 
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. 
97 
B. 
80 


C. 
100 
D. 
93 


Hint 


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


A. 
highest number 
B. 
middle number 


C. 
most frequent 
D. 
arithmetic average 


Hint 


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


A. 
9 
B. 
13 


C. 
12 
D. 
10 


Hint 


5. 
Find the mode of {2, 2, 3, 9, 7, 9, 3, 7, 3}. 


A. 
2 
B. 
7 


C. 
3 
D. 
5 


Hint 


