NO.PZ2019040801000036
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。
为什么是错的?d和答案描述的一致啊