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Data handling and analysis

Data handling and analysis

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Question 73

An environmental scientist investigated the impact of fertilizer type on the nitrate run-off from agricultural plots.

Plots in Category A (treated with organic compost) and Category B (treated with synthetic urea) were monitored over a 30-day period. The nitrate concentrations in the run-off water were recorded daily in parts per million (ppm).

Table 1: The median nitrate concentration (in ppm) for organic compost and synthetic urea plots

Organic Compost (Category A)Synthetic Urea (Category B)
Median nitrate concentration (ppm)1324

Sketch an appropriate graphical display to show the median nitrate concentration levels in Table 1.

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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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