Calculate the estimated population size,N,given a study that initially marked 100 animals and subsequently captured 50,of which 25 were marked.
A)25
B)100
C)50
D)200

Question

Quizplus · Accepted Answer

The estimated population size can be calculated using the Lincoln-Petersen estimator: $N = \frac{M \times C}{R}$, where $M$ is the number of animals initially marked (100), $C$ is the total number of animals captured in the second capture (50), and $R$ is the number of recaptured animals that were marked (25). Plugging in the numbers: $N = \frac{100 \times 50}{25} = 200$.

Calculate the Estimated Population Size,N,given a Study That Initially Marked