The residual value for x = 13 is approximately -3.6.
The correct answer to the given question is option a.
To calculate the residual value for x = 13, we need to substitute x = 13 into the equation y = 0.4x + 11.4.
Plugging in x = 13, we get:
y = 0.4(13) + 11.4
y = 5.2 + 11.z
y = 16.6
To calculate the residual value, we subtract the predicted value from the actual value:
Residual = Actual value - Predicted value
Residual = 13 - 16.6
Residual ≈ -3.6
The probable question may be:
The function y = 0.4x + 11.4 expresses the linear relationship displayed by the scatter plot. Calculate the residual value for x = 13.
a. -3.6
b. -0.4
c. 0.4
d. 0.8