Carlos wants to find an estimate for the number of ants in a colony.
He catches 60 ants from the colony and marks each one with a dye. He then returns the ants to the colony.
A week later, Carlos catches another 60 ants. 8 of these ants are marked with the dye.
Work out an estimate for the number of ants in the colony.
Write down an assumption you have made.
Practise AQA GCSE Statistics Capture Recapture with exam-style questions for Foundation and Higher tier. 5 questions, matched to the AQA GCSE Statistics (8382) specification and written in Paper 1 and Paper 2 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.