

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





A. 
mean, median, and range 
B. 
range and mean 


C. 
mode 
D. 
range 


Hint 


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


A. 
middle number 
B. 
most frequent 


C. 
highest number 
D. 
arithmetic average 


Hint 


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


A. 
13 
B. 
12 


C. 
9 
D. 
10 


Hint 


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


A. 
3 
B. 
2 


C. 
5 
D. 
7 


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. 
33 
B. 
32 


C. 
32.6 
D. 
31 


Hint 


