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SC321 Equation of regression line of best fit using a Casio 2nd edition fx-82AU PLUSII or fx-100AU PLUS scientific calculator

This short video shows how to calculate the equation of the regression line of ‘best fit’, using a Casio 2nd edition fx-82AU PLUSII or fx-100AU PLUS scientific calculator. This calculation is performed on length of spring under suspension data. An extrapolation is made.