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What does correlation between two variables establish?

  1. A That they move together, which is not evidence of causation
  2. B That one causes the other
  3. C That they are independent
  4. D That the data is clean
Answer

That they move together, which is not evidence of causation

Confounding variables, reverse causation and selection bias all produce correlation without any causal link.

All Data MCQs

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