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Mathematics

1 July, 17:06

The correlation coefficient for blood pressure and amount of vegetables eaten in a group of people is - 0.7. Analyze the following statement: High blood pressure is caused by not eating vegetables. Is this a reasonable conclusion?

a - No; blood pressure and eating vegetables are completely unrelated

b - No; even though there is a strong negative correlation, not eating vegetables doesn't necessarily cause high blood pressure

c - Yes; eating vegetables reduces blood pressure, so the opposite is also true d-d-Yes; the correlation coefficient is below - 0.5, so that implies causation