Revision notes for the Data Collection Topic for AS-Level and Year 1 A-Level Edexcel Statistics Mathematics. These notes contain all the knowledge, key points, methods and worked examples needed to understand content and to achieve a high grade. This word document contains 7 pages of revision notes. These are the notes I created and used to obtain an A* at A Level. These notes include: • Populations and samples • Random sampling • Non-random sampling • Types of data • The large data set Uses: • Revision notes • Hand out notes for pupils • Content can be extracted by teachers to add to their lessons • Self-teaching for home education Search: missdarcey