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GCSE Statistics · key term
A practical or ethical limit that affects how an investigation can obtain suitable data.
Used by Edexcel
Specification 1a.02 · Paper 1, Paper 2
Revise: Constraints in sourcing dataAn investigation needs data that actually answers its question. However, the ideal data may be too expensive to collect, difficult to access or too private to share. These limits are called constraints.
A limitation or requirement that restricts how a statistical investigation can be designed or carried out.
Link each constraint to the investigation: explain what is difficult to obtain and how this affects the data, rather than just writing ‘time’ or ‘cost’.
Link each constraint to the investigation in the question: identify the limit and explain how it affects the data collection or design.
If asked for different constraints, give distinct reasons rather than describing the same time or cost problem twice.
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