User manual - fx-9860GII_Soft

6-5656
I Fordeling (diskret)
Fordeling Sandsynlighed
Binomialfordeling
p(x) =
n
C
x
p
x
(1–p)
n – x
(x = 0, 1, ·······, n)
n: antal haler
Poisson-fordeling
(x = 0, 1, 2, ···)
p(x) =
x!
e
–
μ
μ
×
x
M : middelværdi ( M  0)
Geometrisk fordeling
p
(x) = p(1– p)
x – 1
(x = 1, 2, 3, ···)
Hypergeometrisk
fordeling
p(x) =
MCx × N – MCn – x
N
Cn
n: Antal elementer uddraget fra population (0  x heltal)
M: Antal elementer indeholdt i attribut A (0  M heltal)
N: Antal populationselementer (n  N, M  N heltal)
Fordeling
Kumulativ fordeling Invers kumulativ fordeling
Binomialfordeling
p
=

p(x)
x=0
X
p H

p(x)
x=0
X
Poisson-fordeling
Geometrisk fordeling
p
=

p(x)
x=1
X
p H

p(x)
x=1
X
Hypergeometrisk
fordeling
p
=

p(x)
x=0
X
p H

p(x)
x=0
X