Distribution Fitting Software & Articles

Pert Distribution

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(most likely value) - mode parameter ()
, - boundary parameters ( < )



The Pert distribution is a special case of the Beta distribution specified by the following parameters:

Probability Density Function (PDF)

Pert distribution PDF

Pert Distribution Fitting

EasyFit allows to automatically or manually fit the Pert distribution and 55 additional distributions to your data, compare the results, and select the best fitting model using the goodness of fit tests and interactive graphs. Watch the short video about EasyFit and get your free trial.

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Pert Distribution Graphs and Properties

EasyFit displays all graphs and properties of the Pert distribution, presenting the results in an easy to read & understand manner. EasyFit calculates statistical moments (mean, variance etc.), quantiles, tail probabilities depending on the distribution parameters you specify.

Random Numbers from the Pert Distribution

You can easily generate random numbers from the Pert distribution in a variety of ways:

  • directly from EasyFit
  • in Excel sheets using the worksheet functions provided by EasyFitXL
  • in your VBA applications using the EasyFitXL library

Excel Worksheet and VBA Functions

EasyFitXL enables you to use the following functions in your Excel sheets and VBA applications:

Function Name
PertPdf Probability Density Function
PertCdf Cumulative Distribution Function
PertHaz Hazard Function
PertInv Inverse CDF (Quantile Function)
PertRand Random Numbers
PertMean Mean
PertVar Variance
PertStdev Standard Deviation

Learn more: EasyFit Help on the Pert distribution