Chapter 17: The sales volume over the last twelve months for
twenty sales representatives for a
new product. 

Col 1: Sales person number
Col 2: Average daily sales calls
Col 3: Average monthly expenses (in dollars)
Col 4: Number of distributors
Col 5: Territory size (in square miles).
Col 6: Number of retail outlets
Col 7: Population density (per square mile)
Col 8: Annual sales volume (in dollars)

 1    6   1416   7   105   34    976    734900
 2    9   1955   4    88   18   1460   3069000
 3    7   1279   8    86   35   1960   1498700
 4    5   1224   5    76   24    795    687700
 5    6   1659   4   110   19   1963   2532600
 6    9   1733   4   115   17   1143   2324900
 7   10   2052   5    90   21   1684   3137000
 8    6   1194   4   121   19   1590   2013200
 9    7   2073   9   111   38    970    690100
10    8   1962   6   122   25   1042   1342200
11    8   1632   6    77   25    912   1104200
12    5   1116   8   122   38    647    309300
13    7   1929   5   120   22    849   1120100
14    6   1702   6   115   28   1460   1194000
15    7    967   3    88   16   1428   2533200
16    9   1520   7   102   31   1525   1765300
17    7    772   9   106   40    765    572000
18    5   1172   9    90   39    588    330800
19    7   2084   7   124   33   1319   1160000
20    7   1022   8   103   37   1299   1048500