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Some farmers were monitoring the population of roe deer on their land. First, the farmers marked 9292 roe deer. Later, the farmers counted a total of 290290 roe deer, of which 2929 were marked. To the nearest whole number, what is the best estimate for the roe deer population?

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Estimate population size using proportionsright chevron icon

Full solution

Q. Some farmers were monitoring the population of roe deer on their land. First, the farmers marked 9292 roe deer. Later, the farmers counted a total of 290290 roe deer, of which 2929 were marked. To the nearest whole number, what is the best estimate for the roe deer population?
  1. Set up proportion: Step 11: Set up the proportion based on the capture-recapture method.
  2. Solve proportion: Step 22: Solve the proportion by cross-multiplying to find pp.
  3. Isolate and solve: Step 33: Divide both sides by 2929 to isolate pp and solve for the estimated population.

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