题目
Assume the value of the independent variable is zero, then the expected value of the dependent variable would be equal to which of the following?
选项
A.Slope coefficient
B.Intercept coefficient
C.Residual
D.Error term
答案
B
解析
the equation is E(Y|X)=b0+b1x. If x=0, then y=b0 (i.e.,the intercept coefficient).等式为E（Y | X）= b0＋ b1x。 如果x = 0，则y = b0（即截距)