Operation Manual

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Population-Standardabweichung
n
n
i 1
n
(xi x)
2
n
x
2
– (x)
2
/ n
Sample-Standardabweichung
n 1
n – 1
i 1
n
(xi x)
2
x
2
– (x)
2
/ n
n – 1
Arithmetischer Mittelwert
o
n
i 1
n
xi
x
n