Regression Line and Influential Clusters

The regression line would shift to accommodate the new trend, likely resulting in a steeper negative slope and a modified intercept.

The regression analysis would become invalid as the presence of two separate clusters inherently violates the assumptions of linear regression, leading to a complete breakdown of the model’s predictive capacity in an unpredictable and erratic manner that defies standard statistical interpretation.

Only the variability within the new cluster would be affected, leaving the original regression line and its parameters unaltered by the addition of distinct data points.

The addition of the new cluster would have negligible effect on the overall regression line because the original cluster dominates the dataset.