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Data handling and analysis

Data handling and analysis

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Question 118

An environmental statistician is investigating the relationship between daily traffic volume and local PM2.5PM_{2.5}PM2.5​ particulate levels. To gather data, the statistician installs automated traffic counters and optical particulate sensors at five specific roundabouts to record daily readings over a three-month period.

Explain why the data obtained by the statistician is classified as primary data, and suggest one limitation of using primary data for this investigation.

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Markscheme

Data handling and analysis Questions

  1. A Level
  2. /Psychology
  3. /Data handling and analysis

235 exam-style questions on AQA A Level Psychology Data handling and analysis. Each one has a worked solution and a mark scheme showing where the marks go.

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