Binomial and Poisson Distribution (Applet)

Applet description

This applet allows the calculation and graphic display of

• the probabilities ${\rm Pr}(z=\mu)$ of a discrete random variable $z \in \{\mu \} = \{0, 1, 2, 3, \text{...} \}$, that determine its Probability Density Function (PDF) (graphic representation with Dirac functions ${\rm \delta}( z-\mu)$):

$$f_{z}(z)=\sum_{\mu=1}^{M}{\rm Pr}(z=\mu)\cdot {\rm \delta}( z-\mu),$$

• the probabilities ${\rm Pr}(z \le \mu)$ of the Cumulative Distribution Function (CDF) $F_{z}(\mu)={\rm Pr}(z\le\mu)$.

Discrete distributions are available in two parameter sets:

• the Binomial distribution $I$ und $p$   ⇒   $z \in \{0, 1, \text{...} \ , I \}$   ⇒   $M = I+1$ mögliche Werte,
• die Poissonverteilung mit Parameter $\lambda$   ⇒   $z \in \{0, 1, 2, 3, \text{...}\}$   ⇒   $M \to \infty$.