To predict a score from a given X score using the regression equation,we would
A)first multiply X by the slope and then add the Y-intercept.
B)first multiply X by the Y-intercept and then add the slope.
C)first add the Y-intercept to X and then multiply by the slope.
D)first add the slope to X and then multiply by the Y-intercept.

Question

To predict a  score from a given X score using the regression equation,we would
A)first multiply X by the slope and then add the Y-intercept. 
B)first multiply X by the Y-intercept and then add the slope. 
C)first add the Y-intercept to X and then multiply by the slope. 
D)first add the slope to X and then multiply by the Y-intercept.

Quizplus · Accepted Answer

To predict the 11eaab01_ab80_4a8d_acdb_556dcd3f3bf8_TB4035_11 score from a given X score using the regression equation, we need to use the equation Y = a + bX, where a is the Y-intercept and b is the slope. Thus, we first need to multiply X by the slope b and then add the Y-intercept a to get the predicted 11eaab01_ab80_4a8d_acdb_556dcd3f3bf8_TB4035_11 score. This is represented by the formula Y = bX + a. Hence, the correct choice is A.

To Predict a Score from a Given X Score