- 变量比率；变方比；变异数比
- at variance: 有分歧, 不和
- at variance with: 与...有分歧, 与...不和, 与...不符
- variance: n. 1.变化，变动，变更；变度，变量；【统计】(平)方(偏)差。 2.(意见等的)相异；不和，冲突，争论。 3.【法律】诉状和供词的不符。 at variance with 和…不和；和…不符 (at variance with the facts 不符事实。His conduct is at variance with his words. 他言行不符)。 set at variance 使不睦，离间。
- variance with: 和不和
- combined variance(or poolled variance): 合并方差
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