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Appendix
Function
×
50
|x| < 1
10
×
50
|y| < 1
10
×
|Σx| < 1
10
×
Σx
2
Statistic
< 1
10
×
calculations
|Σy| < 1
10
2
×
Σy
< 1
10
×
|Σxy| < 1
10
×
100
|n| < 1
10
_
n ≠ 0
x
n > 1
×
|Σx| < 1
10
sx
(Σx)
–
Σx
2
n
0 ≤
–
n
1
n > 0
×
|Σx| < 1
10
sx
(Σx)
Σx
–
2
n
0 ≤
n
n > 0
×
|Σx| < 1
10
×
|Σy| < 1
10
(Σx)
2
–
0 < (Σx
r
ΣxΣy
–
|Σxy
n
n > 0
×
|Σx| < 1
10
|(Σx) (Σy)| < 1
(Σx)
2
–
0 < |Σx
b
ΣxΣy
–
|Σxy
n
244
Calculation range
100
100
100
100
100
50
2
×
100
< 1
10
50
2
×
100
< 1
10
50
50
(Σy)
2
2
2
×
–
) (Σy
) <1
10
n
n
×
100
| < 1
10
×
100
< 1
10
50
×
100
10
2
×
100
| < 1
10
n
×
100
| < 1
10
×
100
< 1
10
Same for y
sy
100
Regression
calculations
excluding 2nd, 3rd,
and 4th degree
polynomials.
Notes
_
, sy and
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