Kay, an art collector, promised hammer, an art student, that if hammer could obtain certain rare artifacts within two weeks, kay would pay for hammer's postgraduate education. at considerable effort and expense, hammer obtained the specified artifacts within the two-week period. when hammer requested payment, kay refused. kay claimed that there was no consideration for the promise. hammer would prevail against kay based on:

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.