E – 16
File name : HDB0R100721_English_text_100426.doc
version : 10/04/26
xσn-1 [5: Var] [ 4 ] Sample standard deviation of x
values
minX [6: MinMax] [ 1 ] Minimum of x-value
maxX [6: MinMax] [ 2 ] Maximum of x-value
Paired-variable statistics / Regression calculations
Variables Keys Meaning
Σx
Σy
[4: Sum] [ 2 ]
[4: Sum] [ 4 ]
Sum of all x values or y values
Σx 2
Σy 2
[4: Sum] [ 1 ]
[4: Sum] [ 3 ]
Sum of all x 2 values or y2 values
Σx 3
Σx 4
[4: Sum] [ 6 ]
[4: Sum] [ 8 ]
Sum of all x 3 values or x4 values
Σx y [4: Sum] [ 5 ] Sum of ( x • y ) for all x-y pairs
Σx 2 y [4: Sum] [ 7 ] Sum of ( x2 • y ) for all x-y pairs
n [5: Var] [ 1 ] Number of x-y pairs entered
x
y
[5: Var] [ 2 ]
[5: Var] [ 5 ]
Mean of the x values or y values
xσn-1
yσn-1
[5: Var] [ 4 ]
[5: Var] [ 7 ]
Sample standard deviation of x values
or y values
xσn
yσn
[5: Var] [ 3 ]
[5: Var] [ 6 ]
Population standard deviation of x
values or y values
minX [6: MinMax] [ 1 ] Minimum of x-value
maxX [6: MinMax] [ 2 ] Maximum of x-value
minY [6: MinMax] [ 3 ] Minimum of y-value
maxY [6: MinMax] [ 4 ] Maximum of y-value
A [7: Reg] [ 1 ] Regression coefficient constant term A
B [7: Reg] [ 2 ] Regression coefficient B
For non-Quadratic Regression :
r [7: Reg] [ 3 ] Correlation coefficient r
x
ˆ [7: Reg] [ 4 ] Estimated value of x
y
ˆ [7: Reg] [ 5 ] Estimated value of y
For Quadratic Regression (_+CX2) only :
C [7: Reg] [ 3 ] Quadratic coefficientC of the regression
coefficients
1
ˆ
x [7: Reg] [ 4 ] Estimated value of x1