\require{AMSmath}

Binomiale en normale verdeling

q2527img1.gif
xmin=-1
xmax=21
ymin=-0.1
ymax=0.5
n:=20
p:=0.6
s:=sqrt(n*p*(1-p))
grafiek(normalpdf(x-n*p,s))
k:=0
herhaal
rechthoek(k-0.5;0;k+0.5;binomcoeff(n,k)*p^k*(1-p)^(n-k))
k:=k+1
totdat(groter(k,n))

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