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Chapter 2




                           Sampling





               5.1 Sampling methods


               Sampling is appropriate when we can select units (e.g. people, organisations) from a
               population of interest; so that by studying the sample, we may fairly generalise our
               results back to the whole population.



                                                        Random


                       Quota                                                           Systematic










                                                      SAMPLING










                      Cluster                                                            Stratified



                                                      Multi-stage




























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