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11 August, 15:04

Biologists tagged 177 fish in a lake on January 1. On February 1, they returned and collected a random sample of 26 fish, 13 of which had been previously tagged. On the basis of this experiment, approximately how many fish does the lake have?

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  1. 11 August, 17:14
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    354

    Step-by-step explanation:

    We have the following formula:

    actual population / captured population = tagged population / tagged population captured.

    We have the following dа ta:

    captured population = 177

    tagged population = 26

    tagged captured population = 13

    Replacing:

    real population / 177 = 26/13

    solving:

    real population = 177 * 2 = 354

    In other words, there are a total of 354 fish.
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