AS/A2 Stats 1 Stats 3

S2 Topic 1: Binomial and Poisson distributions
Binomial coin experiment
The experiment consists of tossing n coins, each with probability of heads p. The number of heads X and the proportion of heads M are recorded on each update. Either X or M can be selected with the list box. The discrete probability density function and moments of the selected variable are shown in blue in the distribution graph blue and are recorded in the distribution table. On each update, the empirical probability density function and moments of the selected variable are shown in red in the distribution graph and are recorded in the distribution table. The parameters n and p can be varied with scroll bars.

an applet from the Virtual Laboratories in Probability and Statistics