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If a country's total growth rate is -0.4 percent while natural increase is +0.7 percent, what is the net migration rate?

Answer and explanation

Correct answer: -1.1 percent

Answer: A. Total population growth is the sum of natural increase and net migration. Therefore, net migration = total growth − natural increase. Substitute the values: −0.4 − (+0.7) = −1.1%. The negative sign means net out-migration: more people left than entered, when measured as a rate. This out-migration is large enough to overcome the positive natural increase of 0.7%, producing an overall decline of 0.4%. B is wrong because it does not subtract 0.7 correctly. C has the wrong sign and direction. D reverses the subtraction and therefore gives a positive value. Memory cue: total growth = natural increase + net migration; rearrange carefully and preserve the signs, especially when one value is negative.

Related tags

Net MigrationNatural IncreaseTotal Population GrowthOut-MigrationPopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And GrowthGeography

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