Ⅷ An example,,cont. 6300 1800 36 12408 4896 144 14560 7840 196 6252 1512 36 9288 2592 81 13650 8450 169 15630 9450 225 9522 4698 81 Mean:10.545125 Sum. 41,238 968 o 2002 The Wadsworth GroupAn Example, cont. x y x•y x 2 6 300 1800 36 12 408 4896 144 14 560 7840 196 6 252 1512 36 9 288 2592 81 13 650 8450 169 15 630 9450 225 9 522 4698 81 Mean: 10.5 451.25 Sum: 41,238 968 © 2002 The Wadsworth Group