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| 分层随机取样 | |||
| 统计分层随机抽样 | |||
| 分层随机抽样法 | |||
| 分层抽样法; 分层随机抽样 | |||
| 分层随机取样 (法); 分层随机取土样; 分层随机抽样 (法); 分层随机采样; 分层任意抽样 | |||
| stratified random sampling: 10 phrases in 6 subjects |
| Business | 1 |
| Desert science | 1 |
| Earth sciences | 1 |
| Marketing | 1 |
| Statistics | 2 |
| Technology | 4 |
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