In a mark-release-recapture study, 40 snails are marked and released. A second sample of 50 contains 8 marked snails. Estimate the population.
Answer and explanation
Correct answer: D. 250
- Step 1: . Step 2. . Answer: 250. Why not the others: 320 multiplies the marked numbers, ; 400 is ; 6.4 is .
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