Regression calculations – Casio fx-83MS User Manual
Page 26
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Regression Calculations
Use the
F
key to enter the REG Mode when you want
to perform statistical calculations using regression.
REG ................................................................
F
3
• In the SD Mode and REG Mode, the
|
key operates as
the
S
key.
• Entering the REG Mode displays screens like the ones
shown below.
• Press the number key (
1
,
2
, or
3
) that corresponds
to the type of regression you want to use.
1
(Lin) :
Linear regression
2
(Log) :
Logarithmic regression
3
(Exp) :
Exponential regression
r
1
(Pwr) :
Power regression
r
2
(Inv) :
Inverse regression
r
3
(Quad) : Quadratic regression
• Always start data input with
A
B
1
(Scl)
=
to clear
statistical memory.
• Input data using the key sequence shown below.
<
x
-data>
P
<
y
-data>
S
• The values produced by a regression calculation depend
on the values input, and results can be recalled using
the key operations shown in the table below.
1 2 3
L i n Log Ex p
1 2 3
Pw r I nv Quad
r
e
REG