If you were to develop a linear regression equation that predicts violent behaviors from education and number of times in prison, what would be the Y-intercept (a) of the regression equation?
A) -1.49
B) 0.58
C) 4.56
D) 3.65

Question

If you were to develop a linear regression equation that predicts violent behaviors from education and number of times in prison, what would be the Y-intercept (a) of the regression equation? 
A) -1.49 
B) 0.58 
C) 4.56 
D) 3.65

Quizplus · Accepted Answer

Without any education, it still implies there is a possibility for an individual to exhibit violent behavior, hence the regression model cannot have a negative y-intercept. Option A is incorrect. Option B does not make sense since the minimum value of the number of times in prison is zero, a positive count. Option D also implies that it is possible to have an education level of zero, which does not make sense. Therefore, the only valid option is C.

If You Were to Develop a Linear Regression Equation That