Citizen SR-270X, Instruction Manual

Page: 17 / 129

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