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Numerical and statistical skills

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Question 1

Study the table below, which shows the mean particulate matter (PM2.5PM_{2.5}PM2.5​) concentrations in nine selected European capital cities.

CityMean PM2.5PM_{2.5}PM2.5​ concentration (μg/m3\mu\text{g/m}^3μg/m3)
Berlin13.4
Copenhagen10.5
Dublin12.1
Helsinki8.2
Oslo9.6
Paris14.8
Rome16.2
Stockholm7.4
Warsaw21.5

Calculate the upper quartile value of mean PM2.5PM_{2.5}PM2.5​ concentration for these nine cities. You must show your working.

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Numerical and statistical skills Questions

  1. GCSE
  2. /Geography
  3. /Numerical and statistical skills