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Social & Preventive Medicine
A cardiologist found a highly significant correlation coefficient (r = 0.90) between systolic BP and serum cholesterol values of the patients attending his clinic. Which of the following statements is a wrong interpretation of the correlation coefficient observed?
Since there is a high correlation, the magnitude of both the measurements are likely to be close to each other
A patient with a high level of systolic BP is also likely to have a high level of serum cholesterol.
A patient with a low level of systolic BP is also likely to have a low level of serum cholesterol
About 80% of the variation in systolic BP among his patients can be explained by their serum cholesterol values
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