Researchers conducted an observational study to investigate student civic engagement on a university campus. A researcher stood near a central walkway and invited passing students to sign a petition for a local environmental campaign. The researchers recorded whether the participants were Science students or Humanities students, and whether they signed the petition (exhibited civic engagement) or did not sign. The observation was conducted over a three-hour period on a weekday morning.
Table showing the number of Science and Humanities students who signed the petition or did not sign
| Signed petition | Science students | Humanities students |
|---|---|---|
| Yes (Signed) | 15 | 25 |
| No (Did not sign) | 25 | 15 |
Using the data in the table above, draw a fully labelled pie chart showing the percentage of Science students compared to Humanities students who signed the petition.
513 exam-style questions on OCR A Level Psychology Data recording, analysis and presentation. Each one has a worked solution and a mark scheme showing where the marks go.