each of the following scatterplots shows a cluster of points and one stray point. for each, answer these question: in what way is the point unusual? does it have high leverage, a large residual, or both? 2)do you think that point is an influential point? 3) if that point were revoved, would the correlation become stronger or weaker? explain. 4)if that point were removed, would the slope of the regression line increase or decrease?