An observer records what each of 24 drivers does when a pedestrian waits at a crossing. S means the driver stops, W means the driver slows and waves the pedestrian across, and N means the driver does not stop.
S S N W S N S W S S N S W N S S W S N S S W S N
Sketch a frequency table for these results.
56 exam-style questions on Oxford AQA IGCSE Psychology 1.5 Data handling, covering 1.5.1 Quantitative and qualitative data, 1.5.2 Primary and secondary data, 1.5.3 Mathematical expressions, 1.5.4 Measures of central tendency and range, 1.5.5 Frequency tables and diagrams, 1.5.6 Charts for data display, and 1.5.7 Normal distribution. Each one has a worked solution and a mark scheme showing where the marks go.