I need some help on this:
E(X)=(1/(sigma(sqrt (2pi))) ∫(-infinity to infinity) xexp(-(x-m)^2/(2sigma^2)dx
Show E(X)=m.
I know to add and subtract m to the first x, but I don't know where to go from there.
Thanks for any help.
I need some help on this:
E(X)=(1/(sigma(sqrt (2pi))) ∫(-infinity to infinity) xexp(-(x-m)^2/(2sigma^2)dx
Show E(X)=m.
I know to add and subtract m to the first x, but I don't know where to go from there.
Thanks for any help.