Binomial Distribution Calculator

This function computes binomial probabilities. Here X=b(n,p).

Number of trials Probability of success Number of successes
n = p = k =

Exact binomial probabilities (these may take a while if n is large)
P(X=k): P(X<=k):
*   *   *
Binomial probabilities computed by normal approximation
(with the help of De Moivre-Laplace theorem)
P(X=k): P(X<=k):

Note: The exact probabilities should be accurate to at least 8 decimal places. However, for n=106 or larger, it might take a while to compute them.

Questions or comments? E-mail to Nikolai Chernov.