What is the strength and direction of the correlation between \( x \) and \( y \) ? Small positive linear association Small negative linear association Small positive non-linear association No association, since when one variable changes, it does not influence the other
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Both \( x \) and \( y \) can exhibit a small positive linear association if, generally, as \( x \) increases, \( y \) tends to increase too, albeit weakly. This suggests a relationship exists, though it's not particularly strong. Visualization through a scatterplot might reveal this pattern, where the points appear somewhat clustered along an upward-sloping line. On the flip side, for no association, the data points would be scattered randomly without any discernible pattern or trend between \( x \) and \( y \). In a scenario like this, changes in \( x \) wouldn't reliably indicate changes in \( y\), illustrating independence between the two variables.