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Unit 2 part 3 vocab
| Term | Definition |
|---|---|
| Demographic balancing equation | to describe the future population of a region of any scale: Future population = Current population + (number of births - number of deaths) + (number of immigrants - number of emigrants) |
| immigrants | people who moved into the country |
| Emigrants | people who moved out of the country |
| Crude birth rate (CBR) | is the number of live births per year for each 1,000 people. |
| total fertility rate (TFR) | focuses on women in their childbearing years of ages 15 to 49. is the average number of children who would be born per woman of that group in a country, assuming every woman lived through her childbearing years. |
| life expectancy | the average number of years people live. It is commonly expressed from the time of a person's birth, but it can be calculated at any point in his or her lifetime. |
| infant mortality rate | the number of children who die before their first \ birthday. |
| Crude death rate (CDR) | The number of live deaths per ear for each 1,000 people |
| rate of natural increase (RNI) | The percentage at which a country's population is growing or declining, without the impact of migration |
| population doubling time | For any quantity growing exponentially, the time it takes to double in size, can be estimated using an equation known as the rule of 70 |
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