Q:

Find the residual values, and use the graphing calculator tool to make a residual plotDoes the residual plot show that the line of best fit is appropriate for the data?Yes, the points are evenly distributed about the x-axis.No, the points have no pattern.No, the points are in a linear pattern.Yes, the points are in a curved pattern.

Accepted Solution

A:
Solution-We know that,Residual value = Given value - Predicted valueThe table for residual values is shown below,Plotting a graph, by taking the residual values on ordinate and values of given x on abscissa, a random pattern is obtained where the points are evenly distributed about x-axis. We know that,If the points in a residual plot are randomly dispersed around the horizontal or x-axis, a linear regression model is appropriate for the data. Otherwise, a non-linear model is more appropriate.As, in this case the points are distributed randomly around x-axis, so the residual plot show that the line of regression is best fit for the data set.