The number of passes completed and the total number of passing yards was recorded for Brett Favre for each of the 16 regular season games in the fall of 2006.

a. Draw a scatterplot to describe the relationship between number of completions and total passing yards for Brett Favre.

b. Describe the plot in part a. Do you see any outliers? Do the rest of the points seem to form a pattern?

c. Calculate the correlation coefficient, r, between the number of completions and total passing yards.

d. What is the regression line for predicting total number of passing yards y based on the total number of completions x?

e. If Brett Favre had 20 pass completions in his next game, what would you predict his total number of passing yards to be?

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Week Completions Total Yards 170 1 31 340 340 205 220 206 17 180 287 347 10 5 73 266 11 12 214 13 293 14 174 15 285 285 16 -23 4567