Regression Calculations - Casio fx-270MS User Manual

Regression Calculations

F
Use the
to perform statistical calculations using regression.
REG ................................................................
• In the SD Mode and REG Mode, the
S
the key.
• Entering the REG Mode displays screens like the ones
shown below.
• Press the number key (
to the type of regression you want to use.
1
2
3
r 1
r 2
r 3
• Always start data input with
statistical memory.
• Input data using the key sequence shown below.
x
< -data>
• 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.
key to enter the REG Mode when you want
L i n Log Ex p
1
Pw r I nv Quad
1
(Lin) : Linear regression
(Log) : Logarithmic regression
(Exp) : Exponential regression
(Pwr) : Power regression
(Inv) : Inverse regression
(Quad) : Quadratic regression
P
y
< -data>
2 3
r e
2 3
1 2
, , or
A B 1
S
E-24
|
key operates as
3
) that corresponds
=
(Scl)
REG
F 3
to clear