Binomial Distribution

Binomial Distribution  *****
Shows how the binomial distribution can be approximated by the normal  distribution.You also can use this applet to calculate the probability of obtaining a given number of successes.
See also The Binomial Coin Experiment and The Dice Experiment

Confidence Interval on a Proportion  ****
Allows you to find the actual coverage of confidence intervals on a proportion with  various values of N and Pi.