A Graphically Motivated, Non-Calculus
Derivation of Formulas for Linear Regression

S. M. Zoltek and S. S. Dick
Department of Mathematical Sciences
Honors Program in General Education
George Mason University
Fairfax, Virginia 22030
e-mail: szoltek@gmu.edu, sdick@gmu.edu


A non-calculus derivation of linear regression formulas is supported by the graphical display of the TI-83 calculator to visualize the minimization of the sum-squared vertical distances.

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