| [Visitor (220.202.*.*)]answers [Chinese ] | Time :2023-03-25 |  1. The random error term is a random variable with an expected value or average value of 0;
2. For all observations of explanatory variables, the random error term has the same variance;
3. The random error terms are not related to each other;
4. Explanatory variables are deterministic variables, not random variables, and are independent of each other with random error terms;
5. There is no precise (complete) linear relationship between explanatory variables, that is, the sample observation matrix of explanatory variables is a full-rank matrix;
6. The random error term obeys the normal distribution. |
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