NO.PZ2020010801000016
问题如下:
How does the correlation between pairs of explanatory variables affect the interpretation of the coefficients in a regression with multiple explanatory variables?
解释:
Regression coefficients are interpreted as holding all other variables constant, and so the correlation between the regressors is immaterial to the interpretation of the coefficients.
老师可是不是讲过如果自变量存在相关性,会影响回归方程的系数,影响参数估计的准确性吗