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High in the Rocky Mountains, a biology research team has drained a lake to get rid of all fish. After the lake was refilled, they stocked it with an...

High in the Rocky Mountains, a biology research team has drained a lake to get rid of all fish. After the lake was refilled, they stocked it with an endangered species of Greenback trout. Of the 2000 Greenback trout put into the lake 700 were tagged for later study. An electroshock method is used on individual fish to get a study sample. However, this method is hard on the fish. The research team wants to know the smallest number of fish that must be electroshocked to be at least 90% sure of getting a sample of two or more tagged trout. Please provide the answer. For more studies similar to this one, see A National Symposium on Catch and Release Fishing, Humboldt State University. 

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Electroshock at least 10... View the full answer

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3 comments
  • Correction: At the start of the Explanation, I meant "The problem uses the Binomial dis
    • justineuro
    • Jan 12, 2018 at 9:08am
  • tribution.
    • justineuro
    • Jan 12, 2018 at 9:09am
  • In a number of instances in the Explanation, the word "trout" should have been "trouts". Also there is at least one occurrence of "tout" which should have been "trouts".
    • justineuro
    • Jan 12, 2018 at 9:13am

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