# Epidemiology and Definition of Relative Risk

Describe when and why you would use relative risk. Justify your rationale.

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#### Solution Preview

Relative risk is a statistic that tells the probability of an event occurring in an exposed group compared to a non-exposed group. For example, the relative risk can be used to show the probability of lung cancer occurring in smokers compared to non-smokers. Relative Risk can also be used to predict the probability of a disease happening. ...

#### Solution Summary

This solution defines relative risk and explains how it is used with an experimental and control group. It also provides the equation to calculate relative risk and references used.

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