Seonglae Cho물리학에서 한 점에서 다른 점까지의 힘의 크기와 그 거리인데 확률과 통계에서 n차 모멘트는 데이터가 중심(평균)에서 얼마나 떨어져 있는지 나타내고 계산방식이 비슷함
nth moment
Moment (mathematics)
In mathematics, the moments of a function are certain quantitative measures related to the shape of the function's graph. If the function represents mass density, then the zeroth moment is the total mass, the first moment (normalized by total mass) is the center of mass, and the second moment is the moment of inertia. If the function is a probability distribution, then the first moment is the expected value, the second central moment is the variance, the third standardized moment is the skewness, and the fourth standardized moment is the kurtosis.
https://en.wikipedia.org/wiki/Moment_(mathematics)