Lincoln index - model answers
Year Number of banded birds Number of banded birds caught the following year Total Catch of birds in the following year. Estimate of total USA duck population 1920 238 31 5 000 000 38.4 million 1921 382 52 4 900 000 36.0 million 1922 3774 572 4 800 000 31.7 million 1923 4103 438 4 200 000 39.3 million se the formula of the Lincoln index to calculate an estimate of the total USA duck population in each of these four...