Question

A population of 2,000 birds has an annual per capita birth rate of 14/100, an annual per capita death rate of 9/100, and an emigration rate of 2/100. What was the per capita rate of increase, including emigration, for this year?

14
60
0.03
0.06

Answer 1

The per capita rate of increase for the bird population, including emigration, is 0.03 or 3% per year.

Step-by-step explanation:

To calculate the per capita rate of increase for a population of birds, we must consider the birth rate, death rate, and emigration rate. The per capita birth rate given is 14/100, the death rate is 9/100, and the emigration rate is 2/100. To find the per capita rate of increase, including emigration, you subtract the sum of the death rate and the emigration rate from the birth rate: (14/100) - (9/100 + 2/100) = 14/100 - 11/100 = 3/100 or 0.03. Therefore, the per capita rate of increase for the bird population, when including emigration, is 0.03 or 3% per year.