Question: groups is the variance within groups. Why are scatterplots helpful when investigating the association between quantitative variables? 1. The Pearson correlation statistic, r, is always

investigating the association between quantitative variables? 1. The Pearson correlation statistic, r,

groups is the variance within groups. Why are scatterplots helpful when investigating the association between quantitative variables? 1. The Pearson correlation statistic, r, is always greater

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