Skip to content

Course home

Capture Recapture

Capture Recapture

EasyMediumHard
123456789101112131415161718192021222324252627
Question 7

Sian wants to estimate the number of birds in a woodland area. She catches 60 birds, attaches a ring to their leg and releases them. Later, she catches a sample of 45 birds and finds that 15 of them have rings.

a.

Calculate an estimate for the total number of birds in the woodland.

[2]
b.

Write down any assumptions you have made.

[1]
Markscheme

Capture Recapture Questions

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

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

Question bank