Calculator Topic

Probability Distribution

Use our probability distribution calculators to calculate probabilities and summary measures for common discrete and continuous distributions. Choose the appropriate calculator based on your data, random variable, and the type of probability you want to find.

Calculators in This Topic

9 tools

Binomial Distribution Calculator

This binomial probability calculator finds exact and cumulative binomial probabilities for a given number of trials, probability of success, and number of...

Expected Value Calculator

Use this expected value calculator to find the expected value, variance, and standard deviation of a discrete probability distribution. Enter the possible...

Exponential Distribution Calculator

This exponential distribution calculator finds less than, greater than, between, and outside probabilities for a given rate parameter, λ. It also provides...

Geometric Distribution Calculator

This geometric distribution calculator finds exact and cumulative probabilities for the trial on which the first success occurs. It also provides the...

Hypergeometric Distribution Calculator

Use this hypergeometric distribution calculator finds exact and cumulative probabilities when sampling without replacement from a finite population. It also provides the...

Negative Binomial Distribution Calculator

Use this negative binomial distribution calculator to find exact and cumulative probabilities for the trial on which the r-th success occurs. It...

Normal Approximation to Binomial Calculator

This normal approximation to binomial calculator estimates exact and cumulative binomial probabilities using the normal distribution with continuity correction. It also checks...

Poisson Distribution Calculator

This Poisson distribution calculator finds exact and cumulative Poisson probabilities for a given average event rate, λ, and number of occurrences. It...

Uniform Distribution Calculator

This uniform distribution calculator finds less than, greater than, between, and outside probabilities for a continuous uniform distribution. It also provides the...