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Negative Binomial Distribution Probability Calculator

This calculator finds Binomial probabilities associated with a provided probability of success (p) and number of failures (k) until the r successes occur.

Enter the required values, then click the Calculate button.

P(X = ):

P(X < ):

P(X ≤ ):

P(X > ):

P(X ≥ ):

About the Negative binomial distribution

The negative binomial distribution is a discrete probability distribution that models the number of failures in a sequence of Bernoulli trials before a specified number of non-random successes (r) occurs.