This only works for continuous functions right? Are there real world scenarios where we need to integrate discrete functions? Would we just use sum in that case ?

tingp

I think for discrete functions sum makes sense. Since the CDF of discrete random variables is just the sum of the probability for any x' less than x.

This only works for continuous functions right? Are there real world scenarios where we need to integrate discrete functions? Would we just use sum in that case ?

I think for discrete functions sum makes sense. Since the CDF of discrete random variables is just the sum of the probability for any x' less than x.