

1. 
Find the mean of the set of data {67, 90, 83, 85, 73, 80, 78, 79, 68, 71}. 


A. 
77.4 
B. 
75.2 


C. 
76.9 
D. 
82.2 


Hint 


2. 
What is the mode of the set of data {67, 90, 83, 85, 73, 80, 78, 79, 68, 71}? 


A. 
no mode 
B. 
77.4 


C. 
67 
D. 
78.5 


Hint 


3. 
In a stemandleaf plot, what could 81 represent? 


A. 
0.81 
B. 
81 


C. 
8100 
D. 
all of these 


Hint 


4. 
What is the value of n so that the mean of {n, 3n  1, 3n, 3n + 1} is 10? 


A. 
4 
B. 
7 


C. 
2 
D. 
6 


Hint 


5. 
Use the frequency distribution below of the number of points that a girl's basketball team scored throughout the season to estimate the mean. 





A. 
65 
B. 
63 


C. 
68 
D. 
61 


Hint 

