Casio fx-50F - Regression Coefficients for Quadratic Regression and Min;Max Commands

E-46
Regression Coeffi cient and Estimated Value Commands for Quadratic
Regression (VAR Menu)
For details about the formula that is executed by each of these commands, see “Regression
Coeffi cient and Estimated Value Calculation Formula Table” (page 47).
a
1
2
(S-VAR)
1
(VAR)
ee
1
Obtains constant term a of the regression formula.
b
1
2
(S-VAR)
1
(VAR)
ee
2
Obtains coeffi cient b of the regression formula.
c
1
2
(S-VAR)
1
(VAR)
ee
3
Obtains coeffi cient c of the regression formula.
ˆ x
1
1
2
(S-VAR)
1
(VAR)
d
1
Taking the value input immediately before this command as the
y
-value, uses the formula on
page 47 to determine one estimated value of
x
.
ˆ x
2
1
2
(S-VAR)
1
(VAR)
d
2
Taking the value input immediately before this command as the
y
-value, uses the formula on
page 47 to determine one more estimated value of
x
.
ˆ y
1
2
(S-VAR)
1
(VAR)
d
3
Taking the value input immediately before this command as the
x
-value, uses the formula on
page 47 to determine the estimated value of
y
.
Minimum and Maximum Value Commands (MINMAX Menu)
minX
1
2
(S-VAR)
2
(MINMAX)
1
Obtains the minimum value of the sample
x
-data.
maxX
1
2
(S-VAR)
2
(MINMAX)
2
Obtains the maximum value of the sample
x
-data.
minY
1
2
(S-VAR)
2
(MINMAX)
e
1
Obtains the minimum value of the sample
y
-data.
maxY
1
2
(S-VAR)
2
(MINMAX)
e
2
Obtains the maximum value of the sample
y
-data.