Read Edit View history 协方差 xiéfāngchā covariance Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 协方差/ 協方差 xiéfāngchā covariance (statistics) covariance 这两个随机变量之间的协方差为零，说明它们不相关。 Edit Delete References Add reference No references for this word.