If X has the probability mass function f(x) = k / x! (x=0,1,2,...),

what is the value of k?

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- December 14th 2009, 11:21 PMnameck[SOLVED] Probability (probability mass function,pmf)
If X has the probability mass function f(x) = k / x! (x=0,1,2,...),

what is the value of k? - December 15th 2009, 03:11 AMHallsofIvy
- December 15th 2009, 03:18 AMnameck
how to cancel the factorial(!) sign?

- December 15th 2009, 06:30 AMPlato