Which statement correctly contrasts correlation with causation?

Which statement correctly contrasts correlation with causation?

• A. They are essentially the same idea
• B. Correlation means a relationship; causation means one thing causes another
• C. Causation means a relationship, while correlation means one thing causes another
• D. They are unrelated

Answer: (D)

Understanding the difference between correlation and causation is essential. Correlation means two variables move together in some pattern—a relationship is present—but it does not explain why that pattern occurs. Causation means one variable directly brings about a change in the other; there is a cause-and-effect link. The statement that best contrasts them says correlation describes a relationship, while causation describes one thing causing another. That wording cleanly captures the distinction: a relationship does not by itself establish that one variable causes the other. The other ideas don’t fit as well because they either treat correlation and causation as the same thing, swap their definitions, or claim they’re unrelated. In reality, a correlation signals a relationship and can raise questions about possible causation, but it does not prove it.

Understanding the difference between correlation and causation is essential. Correlation means two variables move together in some pattern—a relationship is present—but it does not explain why that pattern occurs. Causation means one variable directly brings about a change in the other; there is a cause-and-effect link.

The statement that best contrasts them says correlation describes a relationship, while causation describes one thing causing another. That wording cleanly captures the distinction: a relationship does not by itself establish that one variable causes the other.

The other ideas don’t fit as well because they either treat correlation and causation as the same thing, swap their definitions, or claim they’re unrelated. In reality, a correlation signals a relationship and can raise questions about possible causation, but it does not prove it.