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3. Why are scatterplots helpful when investigating the association between quantitative variables? 4. The Pearson correlation statistic, r, is always greater than or equal to

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3. Why are scatterplots helpful when investigating the association between quantitative variables? 4. The Pearson correlation statistic, r, is always greater than or equal to and less than or equal to Absolutely no association is present when re Between r = -0.56 and r = +0.46, the stronger correlation is 5. A Pearson correlation statistic is only valid when the relationship between

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