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
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.