Given Po=8000,Births=200,Deaths=120.Estimate the population if it is free from migration
Answers
Given:
Population = 8000
Births = 200
Deaths = 120
To find:
Estimate the population if it is free from migration.
Solution:
Change in population size = (Births + Immigration) - (Deaths + Emigration)
% of the population were births = 200 / 8000 = 0.025 = 2.5%
% of the population were deaths = 120 / 8000 = 0.015 = 1.5%
Net growth = (Births - Deaths) / Population
Net growth = (200 - 120) / 8000
Net growth = 80 / 8000
Net growth = 0.01
Net growth = 1%
So, the population would be growing by 1% this first year. That means that after one year, there will be 80 more individuals than the previous year.
Therefore, after one year, the population would be 8080 individuals.
Answer:
Given,
Po=8000
Births=200
Deaths=120
Ans,
Pt=Po+(B-D)
Pt=8000+(200-120)
Pt=8000+(80)
Pt=8080
Explanation:
The formula for finding the population is
Pt=Po+(B-D)+(I-E)
as the question states the population is free from migration we used the formula used in the solution.
Hope it is useful