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A country has a natural increase rate of negative 0.3 percent and a positive net migration rate of 0.5 percent. What is the total growth rate?

Answer and explanation

Correct answer: Positive 0.2 percent

Total population growth combines natural increase and net migration. Natural increase already reflects births minus deaths. Net migration may be positive when more people enter than leave, or negative when more leave than enter. The two rates are added algebraically, so their signs must be retained.

Here the total rate is \(-0.3+0.5=+0.2\) percent. Although natural change reduces the population by 0.3 percent, net in-migration adds 0.5 percent, which is larger. The result is therefore a positive growth rate of 0.2 percent, making option C correct. Adding magnitudes without signs would incorrectly produce 0.8 percent.

Related tags

Natural DecreasePositive MigrationTotal Growth RatePopulation ChangePopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And Growth

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