Case 4-2 lisa is a student who regularly uses the computers at her local internet café to listen to music, talk to her friends and family through the internet, and play computer games. the internet café has recently enacted a new policy that says that all users must use the attached to their computers when carrying out activities on the computer that will provide sound, so as to not disturb the other users.

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.