问题如下:
The essence of the ordinary least squares process is:
选项:
A.produces sample regression coefficients.
B.maximizes the number of independent variables.
C.minimizes the number of dependent variables.
D.minimizes the sum of the squared error terms.
解释:
D is correct.
考点:OLS
解析:OLS过程的本质就是最小化残差平方和。计算自变量的系数是它的目的。
为什么选项A是错的?