What's true of MGF MX(0)M_X(0)MX(0)?
MX(0)=1M_X(0) = 1MX(0)=1
MX(0)=E[X]M_X(0) = E[X]MX(0)=E[X]
MX(0)=Var(X)M_X(0) = Var(X)MX(0)=Var(X)
MX(0)=0M_X(0) = 0MX(0)=0