9.15. A high school student analyzes whether a relationship exists between x = number of books read for pleasure in the previous year and y = daily average number of hours spent watching television.

For her three best friends, Table 9.10 shows the observations.

(a) Construct a scatterplot. From inspection ofthe plot, state the prediction equation, and interpret. (Note: You can do this without using the least squares formulas.)

(b) By inspection, report the sample correlation between x and y, and interpret.