Edexcel GCSE Statistics · 1ST0
Specification 1c.04 · Paper 1, Paper 2
Revise: Appropriate sampling techniquesIn simple random sampling, every member of the population has an equal chance of being selected. Start with a complete sampling frame, give each member a unique number, and use random selection to choose the required number of different members. For a class survey, this could mean randomly choosing numbers assigned to students on the class register.