Question: The following 2 scatterplots, denoted as Scatterplot A and Scatterplot B, depict data collected on 10 paired observations for automobile weight (pounds) and miles per gallon (mpg). They are scaled exactly the same. Answer the questions that follow.

(a) One scatterplot has an r-value of -0.79 and the other scatterplot has an r-value of -0.93. Which one is which? How can you tell?

(b) By looking at the 2 scatterplots, does automobile weight appear to be a good predictor of miles per gallon? How can you tell? What type of correlation is represented in the 2 scatterplots: positive, negative, or neither?