User Manual

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6(DRAW)

a ...... Med-Med graph slope

b ...... Med-Med graph y-intercept

k Quadratic/Cubic/Quartic Regression Graph

P. 254 A quadratic/cubic/quartic regression graph represents connection of the data

points of a scatter diagram. It actually is a scattering of so many points that are

close enough together to be connected. The formula that represents this is

quadratic/cubic/quartic regression.

Ex. Quadratic regression

3(X^ 2)

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6(DRAW)

Quadratic regression

a ...... regression second coefficient

b ...... regression first coefficient

c ...... regression constant term (y-intercept)

Cubic regression

a ...... regression third coefficient

b ...... regression second coefficient

c ...... regression first coefficient

d ...... regression constant term (y-intercept)

Quartic regression

a ...... regression fourth coefficient

b ...... regression third coefficient

c ...... regression second coefficient

d ...... regression first coefficient

e ...... regression constant term (y-intercept)

18 - 4 Calculating and Graphing Paired-Variable Statistical Data