Question

What is the predicted value of y when x=5, if the equation of the regression line is y = 23.1 -3.8x?

a. 4.1
b. 11.7
c. 15.5
d.7.9

Answer 1

The predicted value of y when x=5 is 4.1.

Step-by-step explanation:

To find the predicted value of y when x=5, we can use the equation of the regression line: y = 23.1 - 3.8x. Plugging in x=5, we get y = 23.1 - 3.8(5) = 23.1 - 19 = 4.1. Therefore, the predicted value of y when x=5 is 4.1.