Nancy arrived early for the first day of her new psychology class at State University. While standing in the hallway waiting for class to begin, she had a pleasant conversation with an elderly man. Based on his clothing and overall appearance, Nancy assumed that he must be a friendly janitor and asked him about his custodial work. Nancy was embarrassed to learn that the kindly old man was actually the professor for her psychology class. In this scenario, Nancy made an error in her use of:

Griffin correctly concludes that the coordinate pair for the russian federation is an influential point, because removing the russian federation from the relationship will significantly change the trend of the regression line. is an influential point, because removing the russian federation from the relationship will not significantly affect the estimated coefficient of determination of the regression line. is not an influential point, because the russian federation does not have the highest cvdir of all 1111 nations in the scatterplot. is an influential point, because removing the russian federation from the relationship will not significantly affect the estimated slope of the regression line. is not an influential point, because the russian federation has a positive residual in the least-squares linear regression.