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A region records 8500 births, 5900 deaths, 2100 in-migrants, and 3200 out-migrants. What is the total population change?

Answer and explanation

Correct answer: Increase of 1500

Total population change combines natural increase with net migration. First calculate natural increase by subtracting deaths from births: \(8500-5900=2600\). Next calculate net migration by subtracting out-migrants from in-migrants: \(2100-3200=-1100\). The negative sign means the region lost 1100 people through migration.

Combining both components gives \(2600+(-1100)=1500\), so the total population increased by 1500. The value 2600 ignores migration, while 1100 is only the migration loss. A result of 3700 would incorrectly add all positive figures without subtracting deaths and out-migration. Therefore option A is correct.

Related tags

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

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