The following are the salaries of officers in a police department:
       The chief makes $85,000 per year,
       Two sergeants make $60,000 per year,
       Six patrol persons make $40,000 each, and
       Two trainees make $9,000 per year.

1.  Make a Frequency Distribution  Table for these data.  If you do this in class, it can be done by hand.  If you submit it to WEBCT, you may type it in ASCII characters or use a drawing program.
 
 
 
 
 
 
 
 

2.  Make a Frequency Distribution Histogram for these data.  If you do this in WEBCT, you may create a histogram with ASCII characters, or do one in a graphics program such as Excel.
 
 
 
 
 
 
 
 

3.    Compute the mean salary for the department?                                     .
 

4.    What is the median salary for the department?                                 .
 

5.     What is the range of the salaries in the department?                       .
 

4.    What is the standard deviation of the salaries in the department?                                        .
                  (Tronchim also explains how to compute this, and gives an example.)