“combined regression estimator”的概念、定义、翻译、参考文献-科学参考

单词	combined regression estimator
释义	combined regression estimator Encyclopedia 理学数据收集模式释 combined regression estimator联合回归估计对于分层随机抽样，先按分层简单估计得目标变量与辅助变量的分层估计量，再用对应的分层估计量来构造回归估计量的估计方法。
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