A psychologist asks six participants to rate how anxious they feel before giving a speech, using a scale from 1 to 10. The mean rating for all six participants is 6.5.
The ratings for five of the participants are shown in the table.
| Participant | Anxiety rating |
|---|---|
| A | 4 |
| B | 5 |
| C | 6 |
| D | 7 |
| E | 8 |
Calculate the anxiety rating given by the sixth participant. Show your working.
173 exam-style questions on OCR GCSE Psychology 7.3 Analysing Research, covering 7.3.1 Types of Data, 7.3.2 Measures of central tendency, 7.3.3 Other descriptive statistics, 7.3.4 Tables, Charts and Graphs, 7.3.5 Reliability, 7.3.6 Validity and effects on validity, and 7.3.7 Sources of bias. Each one has a worked solution and a mark scheme showing where the marks go.