题目
Ordinary least square refers to the process that:
选项
A.maximizes the number of independent variables.
B.minimizes the number of independent variables.
C.produces sample regression coefficients.
D.minimizes the sum of the squared error terms.
答案
D
解析
OLS is a process that minimizes the sum of squared residuals to produce estimates of the population parameters known as sample regression coefficients.OLS是使残差平方和最小化以产生总体参数估计值（称为样本回归系数）的过程。