

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





A. 
mode 
B. 
range 


C. 
mean, median, and range 
D. 
range and mean 


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. 
100 
B. 
93 


C. 
80 
D. 
97 


Hint 


3. 
Find the median of {67, 24, 98, 15, 76, 44}. 


A. 
67 
B. 
54 


C. 
44 
D. 
55.5 


Hint 


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


A. 
7 
B. 
3 


C. 
5 
D. 
2 


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. 
32.6 


C. 
32 
D. 
31 


Hint 


