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A region records 1200 births, 900 deaths, 500 in-migrants, and 250 out-migrants. What is the total population change?

Answer and explanation

Correct answer: Increase of 550

Total population change has two parts: natural change and net migration. Natural change equals births minus deaths, so it is \(1200-900=300\). Net migration equals in-migrants minus out-migrants, so it is \(500-250=250\). Adding these two net changes gives \(300+250=550\).

Therefore, option C, an increase of 550, is correct. Adding births, deaths, arrivals, and departures as positive values would count deaths and out-migration incorrectly. The correct balance can also be written as \(1200-900+500-250=550\). This is a change in population, not necessarily the final population, because the initial population has not been supplied.

Related tags

Total Population ChangeNatural IncreaseNet MigrationPopulation CalculationPopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And Growth

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