a linear regression equation of the form Y = a + bX,the intercept parameter a shows
A)the value of X when Y is zero.
B)the value of Y when X is zero.
C)the amount that Y changes when X changes by one unit.
D)the amount that X changes when Y changes by one unit.

Question

Quizplus · Accepted Answer

The intercept parameter, "a", is the point where the regression line crosses the Y-axis. Therefore, when X is zero, the value of Y can be found by adding "a" to the product of 0 and "b". Hence, the best choice is B which says that the value of Y when X is zero.

A Linear Regression Equation of the Form Y = a