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单词
stratified random sampling
释义
stratified random sampling
Encyclopedia
教育学
抽样
释
stratified random sampling
分层随机抽样
按照总体已有的某些特征，将总体分为几个不同的部分（每一部分称一个层），再分别在每一部分中随机抽样的方法。
农学
抽样调查
释
stratified random sampling
分层随机抽样
将总体按一定的原则分成若干个子总体，每个子总体称为层，在每个层内进行抽样，不同层的抽样相互独立且每层的抽样都是简单随机抽样的方法。
Mathematics
＞数理统计＞抽样与统计过程控制＞释义
stratified random sampling
分层随机抽样
随便看
energy sum
Energy Supply in Skletal Muscle During Exercise
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energy supply technology for battery-free sensing
energy surface
energy system in metallurgical industry
energy system model
energy system network
energy systems engineering
energy technology
energy-tensor
energy theory
energy transduction
energy transfer
energy transfer chemiluminescence
energy transfer in collision
energy transfer time
energy transformation on the earth surface
energy transmitting fiber
energy transport
energy trap
energy utilization efficiency
energy utilization in coking process
energy utilizationin in rolling process
energy utilization in iron making process
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