A table of residuals is shown. x y Residual 1 6 1.281 2 3 -1.313 3 3 -0.906 3 5 1.094 4 2 -1.5 6 2 -0.688 6 6 3.313 7 1 -1.281 Which ordered pair appears to be an outlier, and what effect does it have on the strength of the association between x and y? (6, 6); outliers make the association weaker (6, 3.313); outliers make the association weaker (6, 3.313); outliers make the association stronger (6, 6); outliers make the association stronger