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Some researchers wanted to know how many salmon were in a local river. The researchers marked 640640 salmon with tags. Later, they captured 450450 salmon and found that 1616 of them had tags. To the nearest whole number, what is the best estimate for the salmon population?

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Estimate population size using proportionsright chevron icon

Full solution

Q. Some researchers wanted to know how many salmon were in a local river. The researchers marked 640640 salmon with tags. Later, they captured 450450 salmon and found that 1616 of them had tags. To the nearest whole number, what is the best estimate for the salmon population?
  1. Set up proportion: Step 11: Set up the proportion based on the capture-recapture method.
  2. Solve for pp: Step 22: Solve for pp using cross multiplication.
  3. Isolate pp: Step 33: Divide both sides by 1616 to isolate pp.

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