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A-Level Biology OCR A

Correlation Explain Variables Direct Causal Link Causation Missing

Correlation does not always imply causation because a third, unobserved variable might be influencing both variables.

Correlation does not always imply causation because a third, unobserved variable might be influencing both variables.

Front Explain why there can be correlation between two variables without there being a direct causal link.
Back Correlation ≠ Causation:
  • Could be missing a third variable, linking the two

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