Safur wants to estimate the number of deer in a forest.
He catches a sample of 40 deer, tags them and releases them back into the forest.
The following week, he catches a second sample of 40 deer.
5 of these deer have been tagged.
Work out an estimate for the number of deer in the forest.
Write down an assumption you have made.
5 exam-style questions on Edexcel GCSE Statistics Capture Recapture. Each one has a worked solution and a mark scheme showing where the marks go.