Method of moments (probability theory)
In probability theory, the method of moments is a way of proving convergence in distribution by proving convergence of a sequence of moment sequences. Suppose X is a random variable and that all of the moments E ( X k ) {\displaystyle \operatorname {E} (X^{k})\,} exist.
Source: Wikipedia — Method of moments (probability theory) (CC BY-SA 4.0)