algebra
posted by C .
Cans omeone le me know if I arrived at the correct answer?
To determine the number of deer in a game preserve, a conservationist catches 391 deer, tags them and lets them lose. Later 534 deer are caught; 178 of them are tagged. How many deer are in the preserve?
I came up with 747

I think that the answer is 1173, please disregard:)

I agree but of course that is not certain.

I also agree.
Let x be the total population. The fraction that are tagged is 178/534, and that equals 391/x. Solving for x yields 1173. I may have posted an incorrect response earlier.
There are both statistical and systematic reasons why this answer is only approximate. The tagged deer may not have become randomly distributed throughout the hunting area, for example.
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