true variance meaning in Chinese
真变异数
Examples
- When > 0 , and the independent variables are positively correlated over time , the second term is positive , so the usual ols variance underestimates the true variance of the estimator
当> 0 ，而且自变量在时间上是正相关时，第二项为正，因此通常的ols方差低估了估计量真实的方差。