Using the formula for a best fit line ... that line would be the best fit line. Is the Residual Sum of Squares the Same as R-Squared? The residual sum of squares (RSS) is the absolute amount ...

Through the magic of least sums regression, and with a few simple equations, we can calculate a predictive model ... What are the disadvantages of least-squares regression? *As some of you will have ...

One idea he came up with was a mathematical equation that's used all the time ... triangle (where one angle equals 90°), the sum of the squares of two sides equals the square of the hypotenuse ...