Following a relaxation exercise, five participants use a scale from 0 to 10 to rate their mood. Their ratings are 3, 5, 6, 7 and 9.
Calculate, with full working, the mean rating given by the group.
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.