Relier Pairs Introduction to PopulationVersion en ligne An introduction to the study of population. par Patricia Gawlik 1 Death rate 2 Median 3 Emigration 4 Ethnic origin 5 Birth rate 6 Demography 7 Immigration 8 Census The number, in a series of numbers, that is larger than half the other numbers and smaller than the other half. A number that shows how many babies are born in a particular place or during a particular time A number that shows how many people died in a particular place or during a particular time. A survey of population figures taken by a country's national government, normally every five or ten years. The racial of cultural background a person comes from. The study of changes that occur over a period of time in human populations. To move to a country other than ones' native country. To leave your country of origin to live permanently in another country.