G01AGF Example Program Results Plot of wheat (X) and potato (Y) yields in 48 counties in England in 1936. 9.000+....+....+....+....+....+....+....+....+. . . . . . . . . 8.250+ 1 + . . . . . 1 . . . 7.500+ + . . . 1 . . 1 . . 1 1 . 6.750+ 1 + . 1 1 1 . . 1 1 1 1 2 . . 11 1 1 . . 1 113 . 6.000+ 1 + . 1 1 11 . . 1 1 1 . . 11 1 1 . . 1 . 5.250+ 1 12 + . 1 . . 1 1 1 . . 1 . . . 4.500+ + . . . . . . +....+....+....+....+....+....+....+....+. 10.00 14.00 18.00 22.00 26.00 12.00 16.00 20.00 24.00