9 choose 5

Lösung

9 c 5

126

Schritte zur Lösung

= \frac{n !}{r ! ( n - r ) !}

Setze ein

n = 9, r = 5

= \frac{9 !}{5 ! ( 9 - 5 ) !}

\frac{9 !}{5 ! ( 9 - 5 ) !} = 126

= 126

a r i t hm e t i c m e an 7, 14, 6, 4, 3

s t d 4, 5, 6, 7, 8

C (40, 3)

in t er q u a r t i l e 3.5, 10.4, 16, 21.7, 27.7

s t d 10, 12, 15, 18, 11, 13, 14, 16, 19, 20