In a Multiple Regression Problem Involving Two Independent Variables,if B₁

Multiple Choice

In a multiple regression problem involving two independent variables,if b₁ is computed to be +2.0,it means that

A) the relationship between X₁ and Y is significant.
B) the estimated mean of Y increases by 2 units for each increase of 1 unit of X₁,holding X₂ constant.
C) the estimated mean of Y increases by 2 units for each increase of 1 unit of X₁,without regard to X₂.
D) the estimated mean of Y is 2 when X₁ equals zero.