| |||
| 统计分层抽样 | |||
| ★ 分层抽样; 分层取样 | |||
| 多层抽样 | |||
| 分层抽样法; 分层随机抽样 | |||
| 分层抽样 (法); 分层采样 | |||
|
stratified sampling : 54 phrases in 13 subjects |
| Agriculture | 1 |
| Business | 5 |
| Commerce | 3 |
| Demography | 2 |
| Desert science | 1 |
| Earth sciences | 1 |
| Economics | 1 |
| Geotechnics | 1 |
| Marketing | 3 |
| Securities | 2 |
| Sociology | 2 |
| Statistics | 6 |
| Technology | 26 |