tǒng / jì / xué / jiā / jīng / cháng / jì / suàn / zhōng / xīn / jǔ / lái / fēn / xī / shù / jù / de / lí / sàn / chéng / dù / 。统计学家经常计算中心矩来分析数据的离散程度。Statisticians often calculate central moments to analyze the dispersion of data.