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Ergebnisse der univariaten/bivariaten Statistik
Wichtiger Hinweis zu den Ergebnissen: Viele
Regressionsgleichungen verwenden dieselben Variablen a,
b, c und d. Nach einer Regressionsberechnung bleiben diese
und die bivariaten Statistikangaben für die betreffenden
Daten im Menü StatVars gespeichert, bis Sie die nächste
Statistik- oder Regressionsberechnung durchführen. Bei der
Interpretation der Ergebnisse muss daher berücksichtigt
werden, welche Statistik- oder Regressionsberechnung
zuletzt durchgeführt wurde. Als Hilfestellung wird dies in der
Titelleiste angezeigt.
Variablen Definition
n Anzahl der Datenpunkte ( x oder (x,y)
v bzw. w Mittelwert aller x -/ y -Werte
Sx bzw. Sy Standardabweichung
(Stichprobenstreuung) der Stichprobe der x
bzw. y
sx bzw. sy Standardabweichung der Grundgesamtheit
der x bzw. y
Gx bzw. Gy Summe aller x -/ y -Werte
Gx
2
or Gy
2
Summe aller x
2
-/ y
2
-Werte
Gxy Summe von (xy) für alle xy -Paare.
a (2-Var) Steigung der linearen Regression
b (2-Var) Y-Achsenabschnitt der linearen
Regression
r (2-Var) Korrelationskoeffizient
x¢ (2-Var) Ermittelt bei Eingabe eines y -Werts
anhand von a und b den voraussichtlichen
x -Wert.
y¢ (2-Var) Ermittelt bei Eingabe eines x -Werts
anhand von a und b den voraussichtlichen
y -Wert.
MinX Minimum der x-Werte
44


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