| Англійський тезаурус | |||
| |||
| Selection of samples by a process involving equal chances of selection of each item | |||
|
random sampling : 4 фрази в 1 тематиці |
| Математика | 4 |
| Англійський тезаурус | |||
| |||
| Selection of samples by a process involving equal chances of selection of each item | |||
|
random sampling : 4 фрази в 1 тематиці |
| Математика | 4 |