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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?

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scme1702
The correlation indicates that the more the vegetables that are eaten, the lower the blood pressure. However, this is not the only factor related to high blood pressure so the conclusion is not valid.
JeanaShupp

Answer: No, because correlation does not imply causation.


Step-by-step explanation:

  • The correlation coefficient, r, can take a range of values from +1 to -1.
  • If r is negative then it is a negative correlation while if r is positive then it would be a positive correlation.

Given: The correlation coefficient for blood pressure and amount of vegetables eaten in a group of people is -0.7.

Since, correlation coefficient is negative then it must be a negative correlation which means there is inversely proportional relation between the quantities.

Thus, if blood pressure increases then amount of vegetables decreases or vice versa.

Now, the given conclusion is "High blood pressure is caused by not eating vegetables." but correlation does not imply causation .

Thus it is not a reasonable conclusion.

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