Question

Find the regression sum of squares for the data given in table by subtraction as well as by direct computation. X y xy 12 10 144 100 120 14 9 196 81 126 11 15 121 225 165 16 8 256 64 128 16 5 256 25 80 18 4 324 16 72 12 20 144 400 240 20 4 400 16 80 10 16 100 256 160 12 15 144 225 180 sum=141 sum=106 sum=2085 sum=1408 sum=1351

Answer 1

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