The table shows results from a contraceptive study lasting one year.
Table
| Method | Number of users | Number becoming pregnant |
|---|---|---|
| P | 200 | 6 |
| Q | 500 | 10 |
Which comparison correctly uses the pregnancy rates?
P has a lower rate: 3% compared with 5%.
Q has a lower rate: 2% compared with 6%.
P has a lower rate: 6% compared with 10%.
Q has a lower rate: 2% compared with 3%.
90 exam-style questions on Edexcel GCSE Biology 7.2 Reproductive hormones, covering 7.2.1 Stages of the menstrual cycle, 7.2.2 Hormonal control of the menstrual cycle, 7.2.3 Hormonal contraception, 7.2.4 Evaluating contraception methods, and 7.2.5 Hormones in Assisted Reproductive Technology. Each one has a worked solution and a mark scheme showing where the marks go.