Biologists use direct variation to estimate the number of individuals of a species in a particular area. They first capture a sample of individuals from the area and mark each specimen with a harmless tag. Later, they return and capture another sample from the same area. They base their estimate on the theory that the proportion of tagged specimens in the new sample is the same as the proportion of tagged individuals in the entire area. Use this idea to work Exercises .
Estimating Fish in a Lake Biologists tagged and released 250 trout. On a later date, they found 7 tagged trout in a sample of 350. Estimate, to the nearest hundred, the total number of trout in the lake.
We need at least 10 more requests to produce the solution.
0 / 10 have requested this problem solution
The more requests, the faster the answer.