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1. Cereal again. The correlation between a cereal s fiber and potassium contents is r = 0.903. What fraction of the variability in potassium is accounted for by the amount of fiber that servings contain?

2. Another car. The correlation between a car's horsepower and its fuel economy (in mpg) is r = -0.869. What fraction of the variability in fuel economy is accounted for by the horsepower?

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Statistics and Probability, Statistics

Category:- Statistics and Probability
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