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Numerical and statistical skills

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Question 11

The table below shows the annual sediment yield of selected rivers in Yorkshire, UK.

RiverCatchment Area (km2km^2km2)Annual Sediment Yield (tonnes/year)
River Swale3854,200
River Ure5125,600
River Nidd2682,900
River Wharfe7597,100
River Derwent1,85712,800
River Aire6906,400

Calculate the mean value for annual sediment yield from the data shown. You must show your working out.

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Numerical and statistical skills Questions

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