12.76 Match the scatterplot Match each of the following scatterplots to the description of its regression and correlation.

The plots are the same except for a single point.

Justify your answer for each scatterplot. (Hint: Think about the possible effect of an outlier in the x-direction and an outlier in the y-direction relative to the regression line for the rest of the data.)

a. r = -0.46 = 142 - 15.6x b. r -0.86 182 - 25.8x = c. r -0.74 165 - 21.8x 110 100 90 90 80 50 70 3.5 Scatterplot 1 x 4.0 4.5