短語詞組短語a simple random sampling 簡(jiǎn)單隨機(jī)抽樣stratified simple random sampling 分層簡(jiǎn)單隨機(jī)抽樣;簡(jiǎn)單隨機(jī)抽樣simple random sampling srs 簡(jiǎn)單隨機(jī)抽樣simple random sampling model 單純隨機(jī)抽樣covariance for simple random sampling [統(tǒng)計(jì)]簡(jiǎn)單隨機(jī)抽樣協(xié)方差simple random sampling without replacement 簡(jiǎn)單隨機(jī)無放回抽樣stratified simple random continuous sampling 分層簡(jiǎn)單隨機(jī)連續(xù)抽樣simple random sampling with replacement 放回的簡(jiǎn)單隨機(jī)抽樣;簡(jiǎn)單隨機(jī)放回抽樣variance for simple random sampling 簡(jiǎn)單隨機(jī)抽樣方差 返回 simple random sampling