# ChiSquared Command

##### Command Categories (All commands)

ChiSquared[ <Degrees of Freedom>, x ]
Creates probability density function (pdf) of Chi squared distribution with the appropriate degrees of freedom.
ChiSquared[ <Degrees of Freedom>, x, <Boolean Cumulative> ]
If the logical value is true, creates cumulative distribution function of Chi squared distribution, otherwise creates pdf of Chi squared distribution.
ChiSquared[ <Degrees of Freedom>, <Variable Value> ]
Calculates the value of cumulative distribution function of Chi squared distribution at Variable Value v, i.e. the probability P(X ≤ v) where X is a random variable with Chi squared distribution with the appropriate degrees of freedom.
Note: Returns the probability for a given x-coordinate's value (or area under the Chi squared distribution curve to the left of the given x-coordinate).
Example:
ChiSquared[4, 3] yields \mathrm{\mathsf{ \gamma(2, \frac{3}{2}) }}, which is approximately 0.44.
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