“分层抽样”的概念、定义、翻译、参考文献-科学参考

单词	分层抽样
释义	分层抽样 Encyclopedia 理学【核心概念】释 stratified sampling分层抽样将总体单元按其属性特征分成若干类型或层，然后在类型或层中随机抽取样本单元的概率抽样方法。又称类型抽样、分类抽样。 Mathematics ＞数理统计＞抽样与统计过程控制＞释义 stratified sampling分层抽样 stratified sampling分层抽样^† Chemistry ＞分析化学＞化学计量学＞释义 stratified sampling分层抽样
随便看	two-valued spin representation two-variable functor two-variable matrix two-vector two vehicles two views on "emptiness" (śūnyatā) two views on "I" (ātman) Two Wangs and Eight Prefectural Commanders two wave mixing two-wave mixing two-way analysis of variance two-way ANOVA two-way antenna two-way automaton two-way channel two-way checklist two-way classification two-way classification model two-way communication two-way dictionary two-way Doppler two-way elimination two-way finite automata two-way finite automaton two-way infinite tape

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。