The world population in 2017 was 7. 5 billion, and its...

The world population in 2017 was 7. 5 billion, and its annual growth rate was $1.2 \%$. If the birth rate was 20 per 1000 people in the year 2017 , what was the death rate, expressed as number per 1000 people?

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Key Concepts

Population Growth Rate

This concept quantifies the change in a population over time, typically as a percentage or per capita change. It reflects the net effect of births, deaths, immigration, and emigration, and is essential for understanding how a population evolves over a given period.

Birth Rate

The birth rate represents the number of live births per a standard unit of population (often per 1000 individuals) in a given time period. It is one of the vital statistics that help determine changes in population size.

Death Rate

The death rate is the number of deaths per a standard unit of population (typically per 1000 people) during a specified period. It is an important demographic measure used alongside the birth rate to assess natural population change.

Natural Increase

Natural increase is the difference between the birth rate and the death rate, representing the inherent growth (or decline) of a population through births and deaths, excluding migration effects. It provides a direct measure of population dynamics over time.

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