The number of passes completed and the total number of passing yards for Drew Brees, quarterback for the New Orleans Saints, were recorded for the 16 regular games in the 2010 football season.7 Week 10 was a bye and no data was reported.

a. What is the least-squares line relating the total passing yards to the number of pass completions for Drew Brees?
b. What proportion of the total variation is explained by the regression of total passing yards (y) on the number of pass completions (x)?
c. If they are available, examine the diagnostic plots to check the validity of the regression assumptions.

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