Geometric Mean

Question 8
From the data set 14, 16, 17, 18, 20, what is the mode?
 

A. 16.5
 

B. 17
 

C. 5
 

D. There is no mode for this data set. Reset Selection
 
Question 9

To measure the average percentage population increase in a state over a census period, a statistician should use the:
 

A. geometric mean.
 

B. arithmetic mean.
 

C. harmonic mean.
 

D. median. Reset Selection
 
Question 10

What is the geometric mean of the following sequence? 8, 8, 12, 14, 22, 16, 20
 

A. 13.35
 

B. 14
 

C. 14.5
 

D. 16 Reset Selection
 
Question 11 of 20

Please answer questions 11-13 using the following data.
 

Sales Number of Retailers
100 up to 120 5
120 up to 140 7
140 up to 160 9
160 up to 180 16
180 up to 200 10
200 up to 220 3

What is the mean sales level?
 

A. 160
 

B. 160.7
 

C. 161.20
 

D. 170 Reset Selection

Question 12

Based on the information in the chart in #11 (above), what is the median sales level?
 

A. 155
 

B. 165
 

C. 168
 

D. 170 Reset Selection
 

Mark for Review What’s This?
Question 13 of 20
5.0 Points
Based on the information in the chart in #11 (above), what is the modal observation?
 

A. 150
 

B. 160
 

C. 170
 

D. 180 Reset Selection