E – 16
File name : HDB0R100721_English_text_100426.doc
version : 10/04/26
x
σ
n-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
Σ
x
Σ
y
[4: Sum] [ 2 ]
[4: Sum] [ 4 ]
Sum of all x values or y values
Σ
x
2
Σ
y
2
[4: Sum] [ 1 ]
[4: Sum] [ 3 ]
Sum of all x
2
values or y
2
values
Σ
x
3
Σ
x
4
[4: Sum] [ 6 ]
[4: Sum] [ 8 ]
Sum of all x
3
values or x
4
values
Σ
x y
[4: Sum] [ 5 ]
Sum of ( x • y ) for all x-y pairs
Σ
x
2
y
[4: Sum] [ 7 ]
Sum of ( x
2
• 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
x
σ
n-1
y
σ
n-1
[5: Var] [ 4 ]
[5: Var] [ 7 ]
Sample standard deviation of x values
or y values
x
σ
n
y
σ
n
[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
xˆ
[7: Reg] [ 4 ]
Estimated value of x
yˆ
[7: Reg] [ 5 ]
Estimated value of y
For Quadratic Regression (_+CX
2
) only :
C
[7: Reg] [ 3 ]
Quadratic coefficient C of the regression
coefficients
1
ˆ
x
[7: Reg] [ 4 ]
Estimated value of x1
Содержание SR-270X
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