Given the following data set, let x be the explanatory variable and y be the response variable. x 2 5 3 7 6 2 7 y 8 7 8 3 6 9 4 (a) If a least squares line was fitted to this data, what percentage of the variation in the y would be explained by the regression line? (Enter your answer as a percent.) ANSWER: % (b) Compute the correlation coefficient: r

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