Logarithmic Regression Graph; Exponential Regression Graph - Casio ALGEBRA FX 2.0 Manual

Calculating and Graphing Paired-Variable Statistical Data
k Logarithmic Regression Graph
Logarithmic regression expresses
regression formula is
linear regression formula
4(CALC)h(Log)
6(DRAW)
The following is the logarithmic regression model formula.
y a b
= +
a .............
b .............
r ..............
r
2 ............ coefficient of determination
k Exponential Regression Graph
Exponential regression expresses
standard exponential regression formula is
y
sides we get In
to linear regression formula Y =
4(CALC)i(Exp)
6(DRAW)
The following is the exponential regression model formula.
bx
y a e
=
•
a .............
b .............
r ..............
r
2 ............ coefficient of determination
y
as a logarithmic function of
y a b x
= + × In , so if we say that X = In
y a b
= + X.
x
ln
•
regression constant term
regression coefficient
correlation coefficient
y
as a proportion of the exponential function of
a bx
= In + . Next, if we say Y = In
a bx
+ .
regression coefficient
regression constant term
correlation coefficient
6-3-8
x
x
, the formula corresponds to
y a e bx
= × , so if we take the logarithms of both
y a
, and = In
19990401
. The standard logarithmic
x
. The
a
, the formula corresponds