ChiSquared.SamplesUnchecked optimisation bug?

@GrasshopperDeveloper wrote:

There’s an optimisation in Numerics.Distributions.ChiSquared.SamplesUnchecked() for dealing with integer degrees-of-freedom. The result however seems incorrect:

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Chi-Squared-samples.png3063x1000 201 KB

Here you see the random samples plotted against the pdf graph for dof=0.9, dof=1.0 and dof=1.1 parameters.

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