

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. 
range 
D. 
mode 


Hint 


2. 
Find the mean of {3, 8, 10, 1, 25}. 


A. 
8 
B. 
9.4 


C. 
9 
D. 
1 


Hint 


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


A. 
arithmetic average 
B. 
highest number 


C. 
middle number 
D. 
most frequent 


Hint 


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


A. 
10 
B. 
12 


C. 
9 
D. 
13 


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. 
31 


C. 
32.6 
D. 
32 


Hint 


