For a human geography fieldwork investigation evaluating the socio-economic impacts of urban regeneration in an inner-city area, a student decides to use stratified sampling to select local residents to complete a questionnaire.
Explain one disadvantage of using this sampling method for this investigation.
107 exam-style questions on Edexcel A GCSE Geography Investigating human environments (urban or rural). Each one has a worked solution and a mark scheme showing where the marks go.