Hello, How can solve this? If Pn < 1 Thanks
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assuming $P_n$ is a probability distribution on the natural numbers then $\displaystyle{\sum_{n=1}^\infty}~P_n = 1$
Hey life24. How many events in your distribution?
There is nothing here to solve! You have a statement that is true for every probability distribution. What is it you want to "solve"?