Below are revenue and pro t (both in $ billions) for nine large entertainment companies.
(a) Make a scatter plot of pro t as a function of revenue.
(b) Use Excel to t the regression, with fitted equation and R2.
(c) In your own words, describe the t. (Data are from Fortune 149, Entertainment no. 7 [April 5, 2005], p. F-50.)

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Revenue and Profit of Entertainment Companies (n = 9) Company AMC Entertainment Clear Channel Communication Liberty Media Profit -0.020 1.146 -0.978 Revenue 1.792 8.931 2.446 Viacom Walt Disney 1.311 26.585 27.061 0.155 1-417 1.267