In the process of proving "sums of a finite number of independent Poisson rv's is a Poisson rv", why do we use moment-generating function or probability generating function ? I am confused wtih the use of mgf or pgf.. Anyone can explain it ? thx

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- October 18th 2008, 03:55 PMsolskjaera stupide question
In the process of proving "sums of a finite number of independent Poisson rv's is a Poisson rv", why do we use moment-generating function or probability generating function ? I am confused wtih the use of mgf or pgf.. Anyone can explain it ? thx

- October 18th 2008, 05:55 PMmr fantastic