Chi-Squared Distribution

Parameters

- degrees of freedom (positive integer)

Domain

Probability Density Function (PDF)

Chi-Squared Distribution Fitting

EasyFit allows to automatically or manually fit the Chi-Squared distribution and 40 additional distributions to your data, compare the results, and select the best fitting model using the goodness of fit tests and interactive graphs.

Chi-Squared Distribution Graphs and Properties

EasyFit displays all graphs and properties of the Chi-Squared 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 Chi-Squared Distribution

You can easily generate random numbers from the Chi-Squared 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	Description
`ChiSqrPdf`	Probability Density Function
`ChiSqrCdf`	Cumulative Distribution Function
`ChiSqrHaz`	Hazard Function
`ChiSqrInv`	Inverse CDF (Quantile Function)
`ChiSqrRand`	Random Numbers
`ChiSqrMean`	Mean
`ChiSqrVar`	Variance
`ChiSqrStdev`	Standard Deviation