回帰係数
when the regression line is linear (y = ax + b) the regression coefficient is the constant (a) that represents the rate of change of one variable (y) as a function of changes in the other (x) it is the slope of the regression line
回帰線が線形(y = ax + b)であるなら、回帰係数は定数(a)で、変数(y)の比率を他の変数(x)の変化の関数として表す 回帰直線の傾斜である