Logarithmic Regression Graph; Exponential Regression Graph - Casio fx-9860G AU User Manual

Calculating and Graphing Paired-Variable Statistical Data
k Logarithmic Regression Graph
Logarithmic regression expresses
regression formula is
linear regression formula
1(CALC)6(g)2(Log)
6(DRAW)
The following is the logarithmic regression model formula.
y a b
= +
a .............
b .............
r ..............
r
2
............ coefficient of determination
MSe
........ mean square error
k Exponential Regression Graph
Exponential regression expresses
standard exponential regression formula is
y
sides we get In = In
to linear regression formula Y = A +
1(CALC)6(g)3(Exp)
6(DRAW)
The following is the exponential regression model formula.
bx
y a e
=
•
a .............
b .............
r ..............
r 2
............ coefficient of determination
MSe
........ mean square error
y
as a logarithmic function of
× In
y a b x
= + , 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
+ . Next, if we say Y = In
bx
.
regression coefficient
regression constant term
correlation coefficient
6-3-8
x
x
, the formula corresponds to
×
bx
y a e
= , so if we take the logarithms of both
y
, and A = In
20050401
. The standard logarithmic
x
. The
a
, the formula corresponds