A study recorded the number of women who became pregnant while using different methods of contraception for one year.
The Table shows the results.
Table
| Method of contraception | Number of women using the method for one year | Number of women who became pregnant |
|---|---|---|
| combined pill | 2000 | 180 |
| condom | 800 | 144 |
| implant | 1200 | 1 |
Calculate the percentage of women using the combined pill who became pregnant.
A student wrote:
"The condom is more effective than the combined pill because fewer women using the condom became pregnant."
Explain why the student is wrong.
Suggest one reason why some people choose to use a condom, even though it is less effective than the combined pill.
48 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.