covariance for stratified sampling

英 [covariance for stratified sampling]
美 [covariance for stratified sampling]

中文释义

分层抽样协方差

单词分析

单词结构：

covariance for stratified sampling

字母数：34

记忆提示

🎯 重点记忆：

  • 单词拼写：covariance for stratified sampling
  • 核心含义：分层抽样协方差

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更新时间：2026-02-03 07:53:50