NO.PZ2020010801000031
问题如下:
Why does a variable with a large variance inflation factor indicate that a model may be improved?
选项:
解释:
When a variable has a large VIF, it is highly correlated with the other variables in the model. The parameter on this variable is usually poorly estimated, and so dropping it tends to have little impact on the fit of the model.
这个知识点在新考纲范围内吗