A study of the human population in Trinidad and Tobago recorded 18,000 births and 12,000 deaths in a particular year. The mid-year population was 1,400,000. What is the natural increase rate per 1000 of the population?

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Question

A study of the human population in Trinidad and Tobago recorded 18,000 births and 12,000 deaths in a particular year. The mid-year population was 1,400,000. What is the natural increase rate per 1000 of the population?

Accepted Answer

4.3 — 3. Natural increase = births - deaths = 18,000 - 12,000 = 6,000. Natural increase rate = (6,000 ÷ 1,400,000) × 1000 = 4.3 per 1000. Award 1 mark for correct calculation. B is incorrect — this would be the birth rate minus death rate calculated incorrectly. C is incorrect — this is the crude death rate. D is incorrect — this confuses the calculation with crude birth rate.

Answer

12.9

Answer

8.6

Answer

4.3

Answer

21.4

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