SOLUTION: A thousand fish in one of the lakes in Ontario were caught and tagged by the Department of Oceans and Fisheries. After a few days, 600 fish caught and of those, 80 had tags. What

Algebra ->  Probability-and-statistics -> SOLUTION: A thousand fish in one of the lakes in Ontario were caught and tagged by the Department of Oceans and Fisheries. After a few days, 600 fish caught and of those, 80 had tags. What      Log On


   

Question 1080549: A thousand fish in one of the lakes in Ontario were caught and tagged by the Department of Oceans and Fisheries. After a few days, 600 fish caught and of those, 80 had tags. What conclusion could be made about the total number of fish in the lake?
Answer by ikleyn(52824) About Me  (Show Source):
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A thousand fish in one of the lakes in Ontario were caughthighlight%28cross%28and%29%29 tagged highlight%28and_returned_back_to_the+lake%29 by the Department of Oceans and Fisheries.
After a few days, 600 fish caught and of those, 80 had tags. What conclusion could be made about the total number of fish in the lake?
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See the lesson
    - Using proportions to estimate the number of fish in a lake
in this site.


This method is used to estimate the amount of fish in lakes.

The proportion works

1000%2Fx = 80%2F600,

which gives the estimate for the number of fish in the lake

x = %281000%2A600%29%2F80 = 7500.