Casio fx-9750G Manual page 16

18 - 4
Calculating and Graphing Paired-Variable Statistical Data
The following are the meanings of the above parameters.
k k k k k Quadratic/Cubic/Quartic Regression Graph
P.289 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.
The following are the meanings of the above parameters.
Quadratic regression
Cubic regression
6(DRAW)
a ......
Med-Med graph slope
b ......
Med-Med graph intercept
Ex. Quadratic regression
3(X^ 2)
6(DRAW)
a ......
Quadratic regression coefficient
b ......
Linear regression coefficient
c ......
Regression constant term (intercept)
a ......
Cubic regression coefficient
b ......
Quadratic regression coefficient
c ......
Linear regression coefficient
d ......
Regression constant term (intercept)
1 2 3 4 5 6
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