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Statistical Tests Practice Test
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Q1
Researchers investigate the association between daily saturated fat intake (in grams) and serum LDL cholesterol levels (in mg/dL). After analyzing the data from their study population, they calculate a Pearson correlation coefficient (r) of 0.70.
Based on this result, what percentage of the variability in serum LDL cholesterol levels can be explained by the variability in daily saturated fat intake?
Based on this result, what percentage of the variability in serum LDL cholesterol levels can be explained by the variability in daily saturated fat intake?