试题详情

如果在线性回归模型中增加一个特征变量,下列可能发生的是( )?

AR-squared 增大,Adjust R-squared 增大

BR-squared 增大,Adjust R-squared 减小

CR-squared 减小,Adjust R-squared 减小

DR-squared 减小,Adjust R-squared 增大