Find the Coefficient of Correlation of the Line That Best $\{ ( 0,8 ) , ( 2,8 ) , ( - 7,19 ) \}$

Multiple Choice

Find the coefficient of correlation of the line that best fits the data set. $\{ ( 0,8 ) , ( 2,8 ) , ( - 7,19 ) \}$

A) $r = 1$
B) $r = - 0.4887$
C) $r = - 0.6841$
D) $r = 0$
E) $r = - 0.9774$