(See Solution) What fraction of the variation is explained? Consider the following correlations: -0.9, -0.5, -0.3, 0, 0.3, 0.5, and 0.9. For each, give
Question: What fraction of the variation is explained? Consider the following correlations: –0.9, –0.5, –0.3, 0, 0.3, 0.5, and 0.9.
For each, give the fraction of the variation in y that is explained by the least-squares regression of y on x. Summarize what you have found from performing these calculations.
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