Question

the following is a residual plot. was it appropriate to compute the least - squares regression line? explain. residuals versus x (response is y). is it appropriate to compute the least - squares regression line because the residual plot a noticeable pattern.

Explanation:

Step1: Recall residual - plot rule

For a least - squares regression line to be appropriate, the residual plot should show no pattern. If there is a pattern in the residual plot, it indicates that the relationship between the variables is not linear.

Step2: Analyze the given residual plot

In the given residual plot, we can observe a noticeable pattern (the points seem to follow a non - random distribution).

Answer:

No, was not, has