1. the pristine data set,makes it different from the residual plot in points from an arbitrary scatter.
2.a linear patter shows some data of numerical bivariate of a scatter plot, the Residual plot would look homogeneous to, If the points in a residual plot are arbitrarily dispersed around the horizontal axis, a linear regression model is felicitous for the data; otherwise, a nonlinear model is more congruous.
