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Capture Recapture

Capture Recapture

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Question 13

Beth wants to estimate the number of frogs in a lake.
She catches a sample of 80 frogs, marks them and puts them back in the lake.
Later that day, in a second sample of 80 frogs, she finds that 10 of them are marked.

a.

Work out an estimate for the number of frogs in the lake.

[2]
b.

Write down any assumptions you have made.

[1]
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Capture Recapture Questions

  1. GCSE
  2. /Maths
  3. /Capture Recapture

20 exam-style questions on AQA GCSE Maths Capture Recapture. Each one has a worked solution and a mark scheme showing where the marks go.

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