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G-21
k Kombination
Beispiel: Zu bestimmen ist, wieviele unterschiedliche
Gruppen aus 4 Mitgliedern aus einer Gruppe von 10 Per-
sonen gebildet werden können
10
A n 4 =
Statistische Rechnungen
k Standardabweichung (SD-Modus)
•Die Tasten F F 1 drücken, um den SD-Modus für
statistische Rechnungen unter Verwendung der Stand-
ardabweichung aufzurufen.
•Die Dateneingabe startet immer mit
A m =, um den
Statistikspeicher zu löschen.
•Die Eingabedaten werden verwendet, um
die Werte für
n, Σx, Σx
2
, o, σn und σn-1
zu berechnen, die Sie unter Verwendung
der nebenstehenden Tastenbetätigung
aufrufen können.
Beispiel: Zu berechnen sind
σnҀ1, σn, o, n, Σx, und Σx
2
für die folgenden Daten : 55, 54, 51, 55, 53, 53, 54, 52
Den SD-Modus aufrufen.
F F 1
A m = (Speicher löschen)
55
S 54 S 51 S 55 S
53 S S 54 S 52 S
(Sample-Standardabweichung σnҀ1) A N =
(Population-Standardabweichung σn) A A =
(Arithmetischer Mittelwert o) A M =
(Anzahl der Daten n) 0 k
(Summe der Werte Σx) 0 H
210.
0 1 Σx
2
0 2 Σx
0 k n
A M o
A A σn
A N σn-1
1.407885953
00
1.316956719
00
53.375
00
8.
00
52.
00
SD
427.
00
23


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