Question

Troy studies porcupines and wants to estimate the population in a certain region. Troy catches 36 porcupines, marks them, and releases them. Then later, Troy catches 450 porcupines and observes that 18 of them are marked. To the nearest whole number, what is the best estimate for the porcupine population?

Answer 1

A Group of scientists caught and tagged  porcupines=140 A week later the scientists counted the porcupines=180