The table shows results from two groups followed for the same length of time.
Table
| Group | Number of adults | Number developing cardiovascular disease |
|---|---|---|
| Smokers | 200 | 30 |
| Non-smokers | 400 | 40 |
Which statement correctly compares the percentages developing cardiovascular disease?
Smokers: 10%10\%10%; non-smokers: 15%15\%15%; the percentage is higher in non-smokers.
Smokers: 15%15\%15%; non-smokers: 10%10\%10%; the percentage is higher in smokers.
Smokers: 15%15\%15%; non-smokers: 20%20\%20%; the percentage is higher in non-smokers.
Smokers: 30%30\%30%; non-smokers: 40%40\%40%; the percentage is higher in non-smokers.
44 exam-style questions on Edexcel GCSE Biology 5.4 Non-communicable diseases, covering 5.4.1 Interaction of factors in non-communicable disease, 5.4.2 Lifestyle factors and non-communicable disease, and 5.4.3 Treatments for cardiovascular disease. Each one has a worked solution and a mark scheme showing where the marks go.