Biology A (J247)
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J247/04 Biology (A) Higher Jun 2019 Quiz | OCR GCSE MCQ

Scientists studied how the mass of alcohol drunk per day affects the relative risk of getting heart disease. The graph shows the results of their study.
relative risk = $\frac{\text{the number of people getting heart disease who drink each mass of alcohol}}{\text{the number of people getting heart disease who drink no alcohol}}$
Which conclusion can be made from this graph?