Fish Population Estimate
Estimating populations
One method of estimating the number of fish in a lake is to catch and tag a collection
of fish and then release them. At a later time we return and catch a sample of fish
and determine the proportion of tagged fish.We can then use that proportion to
estimate the total fish population in the lake. For example, suppose that we initially
caught,tagged and released a total of 50 fish. If we return later and catch a total of 60
fish, 18 of which were tagged, we can then estimate of the number of fish in the lake.
Produce a tape or bar diagram to help calculate your estimate of the number of fish
in the lake.
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