A psychologist records the number of times each participant yawns during a ten-minute waiting task. The results are shown below.
| Number of yawns |
|---|
| 2 |
| 1 |
| 3 |
| 2 |
| 0 |
| 2 |
| 1 |
| 4 |
| 2 |
| 3 |
| 1 |
| 2 |
Construct a frequency table by completing the frequency column and the total.
| Number of yawns | Frequency |
|---|---|
| 0 | |
| 1 | |
| 2 | |
| 3 | |
| 4 | |
| Total |
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.