短語詞組短語Population regression variance 母體回歸變異數(shù)Population Coefficient of Variance 母體變動系數(shù)Grand population variance 大母體的變異數(shù)normal population variance 正態(tài)總體方差estimation of population variance 總體方差的估計Common population variance 共同變異數(shù)estimation for population variance 總體方差的估計estimation population variance 總體比例的估計unbiased estimate population variance 無偏估計總離散 返回 population variance