Binomial distribution - © Rene Vapenik 2010

Binomial distribution

ATTENTION - instead of a decimal comma should be used decimal DOT !

**Formulas**
$X\sim Bi(N,p)$	$P(X=r)=\binom{N}{r}.p^{r}.(1-p)^{N-r}$
$E(X)=Np$	$D(X)=Np(1-p)$
$\gamma _{1}=\frac{1-2p}{\sqrt{Np(1-p)}}$	$\gamma _{2}=\frac{1-6p(1-p)}{Np(1-p)}$

Probability mass function

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Contact © 2010-2011 Author: Rene Vapenik www.elektro-energetika.eu