An issue of Fortune Magazine reported the following companies had the lowest sales per employee among the Fortune 500 companies. Company Sales per Employee ($ thousands) Sales Rank Seagate Technology 42.20 285 SSMC 42.19 414 Russell Maxxam Dibrell Brothers 41.99 480 40.88 485 22.56 470 a. How many elements are in the above data set? b. How many variables are in the above data set? c. How many observations are in the above data set? d. Name the scale of measurement for each of the variables. PR e. Name the variables and indicate whether they are categorical or quantitative.