| |||
| 协方差矩阵 | |||
| 共变量矩阵; 协方差矩阵 | |||
| 协方差阵 | |||
| 协*1/2差3/4卣 | |||
| 协变矩阵; 共差矩阵 | |||
|
covariance matrix : 40 phrases in 12 subjects |
| Air defense | 1 |
| Artificial intelligence | 3 |
| Business | 8 |
| Marketing | 1 |
| Mathematics | 3 |
| Oil / petroleum | 1 |
| Scientific | 1 |
| Space | 8 |
| Statistics | 4 |
| Surveying | 1 |
| Technology | 8 |
| United Nations | 1 |