Thread: chi square dist with zero degrees of freedom

give a reasonable definition of a chi square dist with zero degrees of freedom.
(work with mgf of a dist that is chi square and let r=0)

I was thinking this is gamma dist with alpha=0,beta=2 but can we have gamma dist with a=0???

Originally Posted by ninano1205

give a reasonable definition of a chi square dist with zero degrees of freedom.
(work with mgf of a dist that is chi square and let r=0)

I was thinking this is gamma dist with alpha=0,beta=2 but can we have gamma dist with a=0???

Look at these:

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Noncentral chi-square distribution - Wikipedia, the free encyclopedia