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A scientist notes a correlation between high sugar intake and heart disease. Can she conclude that sugar causes heart disease based only on this?

Yes, correlation always means causation. No, correlation does not imply causation without controlled experiments. Yes, because heart disease is common. No, because sugar is not a chemical.

Correct Answer:

No, correlation does not imply causation without controlled experiments.

Explanation:

A correlation simply means two variables trend together; it does not prove one causes the other.

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