Keywords

1. Birth rate = Number of births per 1000 people → Formula: # of births / total population x 1000
2. Death rate = number of deaths per 1000 people → Formula: #of deaths / total population x 1000
3. Immigration rate = number of immigrants per 1000 → Formula: # of immigrants / total population x 1000
4. Emigration Rate = Number of emigrants per 1000 → # Formula: of emigration / total population x 1000
5. Net migration rate = difference between the number of immigrants and emigrants → Formula: Emigration - immigration x 1000
6. Natural increase rate = Increase of natural population growth → Formula: Births - deaths
7. Population Growth rate = Natural process of births, deaths, and migration → Formula: Natural increase + net migration
8. Population density = The number of people that live in an area → Formula: total population / area
9. Life expectancy = The average period that a person may expect to live.
10. Dependency load = people below 15 + people above 65
11. Population distribution: The geographic pattern of how people are spread out across the Earth's surface.
12. Population Pyramid = represents the breakdown of the population by gender and age at a given point in time