Is the discrete random variable X has p.g.f Gx(s) what is the p.g.f of mX + n?
I know the p.g.f is given by sum over k (p(k)*s^k) but I'm not sure where to go from here
Printable View
Is the discrete random variable X has p.g.f Gx(s) what is the p.g.f of mX + n?
I know the p.g.f is given by sum over k (p(k)*s^k) but I'm not sure where to go from here
LetQuote:
Originally Posted by James0502
. Your definition for
, i.e. sum over k (p(k)*s^k) can alternatively be written as
where
denotes expectation.