Question

A line of best fit predicts that when x equals 32, y will equal 34.215, but y

actually equals 30. What is the residual in this case?
A. -2.215
B. 4.215
C. 4.215
D. 2.215

Answer 1

Answer:
Residual in this case is -4.215
Explanation:
A residual can be defined by
Residual = Actual value - Predicted value
We are given:
Predicted value of y = 34.215
Actual value of y = 30
Putting values in the formula:
Residual = Actual value - Predicted value
Residual = 30 - 34.215
Residual = -4.215
So, residual in this case is -4.215
I hope this helped