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However for three or more variables that method could be tough. How would you do it then? Both for discrete and continous cases.

- Thread starter tgt
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- #1

- 520

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However for three or more variables that method could be tough. How would you do it then? Both for discrete and continous cases.

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quasar987

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For the infinite case, Fubini's theorem for the Lebesgue integral applied to the counting measure gives conditions for when interchanging summation sign is legal.

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