Statistical criteria for curve fitting

The differences between corresponding elements in ordered sets (vectors) in, for example, columns 2 and 3 of output 3-4 give an ordered set of residuals. In this example, the residual for the first data point is 0.2256 — 0.2255161 = 8.39 x 10 . SSE is sometimes written 

The sum of squares of differences between points on the regression line yi at Xi and the arithmetic mean y is called SSR 

To reconcile this notation with the output from TableCurve, note that 

making only the change in notation of SSM for SST to indicate the total deviation from the mean and changing from upper to lower case r, we have 

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