Casio fx-50F PLUS - Manual (Page 47)

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 12(S-VAR) 1(VAR) ee1
Obtains constant term a of the regression formula.
b 12(S-VAR) 1(VAR) ee2
Obtains coeffi cient b of the regression formula.
c 12(S-VAR) 1(VAR) ee3
Obtains coeffi cient c of the regression formula.
ˆ x
1
12(S-VAR) 1(VAR) d1
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
12(S-VAR) 1(VAR) d2
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 12(S-VAR) 1(VAR) d3
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 12(S-VAR) 2(MINMAX)1
Obtains the minimum value of the sample x -data.
maxX 12(S-VAR) 2(MINMAX)2
Obtains the maximum value of the sample x -data.
minY 12(S-VAR) 2(MINMAX)e1
Obtains the minimum value of the sample y -data.
maxY 12(S-VAR) 2(MINMAX)e2
Obtains the maximum value of the sample y -data.