Leo wants to estimate the number of trout in a lake.
He catches a sample of 30 trout, marks them and releases them back into the lake.
The next day, he takes a second sample of 50 trout.
6 of these trout have been marked.
Work out an estimate for the number of trout in the lake.
Write down an assumption you have made.
Practise AQA GCSE Maths Capture Recapture with exam-style questions for Foundation and Higher tier. 20 questions, matched to the AQA GCSE Maths (8300) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
