A student draws a bar chart of responses to a questionnaire with three answer categories. The frequency axis starts at 10 and is labelled 10, 11, 20, 40. The three bars touch each other.
Identify three problems with the student's bar chart.
72 exam-style questions on Edexcel GCSE Psychology 11.2 Data analysis, covering 11.2.1 Arithmetic and numerical computation, 11.2.2 Descriptive statistics, 11.2.3 Tables, charts and graphs, 11.2.4 Primary and secondary data, and 11.2.5 Qualitative and quantitative data. Each one has a worked solution and a mark scheme showing where the marks go.