Relier Pairs Demographic TermsVersion en ligne here are some key words and their definitions that are connected with studying population par Miss T Jack 1 Life Expectancy 2 Replacement Rate 3 Immigration Rate (IR) 4 Birth Rate (BR) 5 Dependency Load 6 Refugee 7 Emigration Rate (ER) 8 Death Rate (DR) the # of people who permanently leave their home country with the intention of staying there the relationship between the # of deaths and size of the population. the (“magic”) number of 2.1 children to keep the population stable the percentage of a country’s population who are younger than 15 and older than 65 (i.e. financially rely on others) the # of people who permanently move to another country the relationship between the # of births and the size of the population. how long a person is predicted to live. someone who flees their homeland for fear of their life but will return home when it is safe to do so