Probability Distribution Calculator

Pick a distribution and fill in its parameters to get the PMF/PDF and CDF table; leave the left box empty for automatic sampling, or type custom values separated by commas or spaces.
Distribution:   Uniform kind:   Show CDF:
           
           
Decimals:   Max points:   Bar width:   Separator:
Calculation Result Download CSV
No. Value x PMF / PDF CDF Text bar chart (proportional)

Introduction to the tool and how to use it

Online probability distribution visualizer supporting seven distributions: normal, binomial, Poisson, uniform, exponential, geometric, and hypergeometric. Pick a distribution and enter its parameters to get PMF/PDF and CDF tables, a text bar chart scaled proportionally to probability, and a summary of mean, variance, standard deviation, mode, and quantiles. The left side may be left blank for automatic points, or filled with custom values; binomial coefficients are computed in the log domain, so a binomial distribution at n=200 never overflows.

How to use

  1. Choose the distribution type and enter its parameters.
  2. Leave blank for automatic points, or enter custom values in the box.
  3. Set CDF display, decimal places, and point cap as needed.
  4. Click Run to view the PMF/PDF and CDF tables.

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