Performing Paired-Variable Statistical Calculations - Casio fx-50F User Manual

Casio calculator user's guide fx-50f
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Performing Paired-variable Statistical Calculations

To perform the example operations in this section, fi rst select REG (
calculation mode.
A Regression Calculation Types
The REG Mode lets you perform the seven types of regression listed below. The fi gures in
the parentheses show the theoretical formulas.
• Linear
• Quadratic
• Logarithmic
e
Exponential
ab
Exponential
• Power
• Inverse
Each time you enter the REG Mode, you must select the type of regression calculation you
plan to perform.
Selecting the Regression Calculation Type
5 (REG) to enter the REG Mode.
1. Press
• This displays the initial regression calculation selection menu. The menu has two
screens, and you can use
2. Perform one of the following operations to select the regression calculation you want.
To select this regression type:
Linear
Logarithmic
e
Exponential
Power
Inverse
Quadratic
ab
Exponential
Note
You can switch to another regression calculation type from within the REG Mode, if you
want. Pressing
step 1 above. Perform the same operation as the above procedure to select the regression
calculation type you want.
y
a
bx
(
=
+
)
y
a
bx
(
=
+
+
y
a
b
(
=
+
ln
bx
y
ae
(
=
)
x
y
ab
(
=
)
b
y
ax
(
=
)
y
a
b
x
(
=
+
/
)
and
L i n Lo
E x
Pwr
g
p
1 2 3 4
2 (S-VAR) 3 (TYPE) will display a menu screen like the one shown in
2
cx
)
x
)
to navigate between them.
I nv Quad AB – Ex
1 2
And press this key:
1 (Lin)
2 (Log)
3 (Exp)
4 (Pwr)
1 (Inv)
2 (Quad)
3 (AB-Exp)
E-42
5 ) as the
p
3

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