## Related questions with answers

Question

The correlation between cell phone usage and life expectancy is very high. Should we buy cell phones to help people live longer?

Solution

VerifiedStep 1

1 of 2No, because the high correlation only tells us that there is a strong (linear) association between the variables, but it cannot tell us anything about causation.

For example, the country GDP influences both the number of cell phones and the longevity of its residents strongly, which thus could potentially be the cause.

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