Sampling is the process of selecting a small group from a larger population to gather information and make conclusions about the whole group. It's a practical and cost-effective way to collect data, especially when studying when it is not possible. Learn about different sampling methods, such as random, stratified, systematic, non-random and capture recapture, with definitions, advantages, disadvantages and examples. Find worksheets based on Edexcel, AQA and OCR exam questions and further guidance on GCSE Maths Statistics. Learn how to select a representative sample for your research using probability or non-probability methods. Compare the advantages and disadvantages of different sampling techniques with examples and definitions. Sampling is a process used in statistical analysis in which a group of observations are extracted from a larger population.

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