Arithmetic Mean

Question 1
A quality control officer samples the number of adjustments on 10 machines over the course of a week in order to estimate the total number of adjustments on all machines in a factory. This is an example of a(n):
 

A. population mean.
 

B. sample mean.
 

C. arithmetic mean.
 

D. weighted mean. Reset Selection
 
Question 2

A clerk records the number of daily responses to a mail survey in one week. The response totals were 7, 17, 22, 12, 23, 20, more than 25. What is the arithmetic mean of the data set?
 

A. 14.43
 

B. 16.83
 

C. 18
 

D. Not calculable with the given data set. Reset Selection
 
Question 3

What is the mean weight of a sample of largemouth bass caught in a lake with weights of 2 lbs., 2 lbs., 3 lbs., 6 lbs., 8 lbs, and 8 lbs.?
 

A. 3.17 lbs.
 

B. 4.75 lbs.
 

C. 4.83 lbs.
 

D. Not calculable with the given data set Reset Selection