Equatins Flashcards

1
Q

Define Demography

A

The study of human population

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2
Q

Define natural increase

A

The rate at which the population changes naturally

NI = Births - Deaths

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3
Q

Define net migration

A

By combing immigration and emigration, you can find the change in population as a result of people moving

NM = Immigration - Emigration

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4
Q

Define population growth

A

To find the overall change in population you need both natural increase and net migration

PG = NI + NM

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5
Q

Define immigration rate

A

Immigrant is a person who moves to one country from another

Immigration Rate = (# of immigrants divided by population) X 1000

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6
Q

Define emigration rate

A

An emigrant is a person who leaves one country to move to another

Emigration Rate = (# of emigrates divided by population) X 1000

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7
Q

Define birth rate

A

The # of births in a population per year per 1000 people. The # of births doesn’t matter but the relationship between the size of the population does

BR = (# of births divided by population) X 1000

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8
Q

Define death rate

A

The # of deaths in a population per year per 1000 people

DR = (Deaths divided by population) X 1000

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9
Q

Define population growth rate

A

The rate at which the population is Growing as a result of natural changes and the movement of people

PGR = NIR + NMR OR (PG divided by population) X 1000

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10
Q

Define doubling time

A

The length of time for a country’s population to double at a particular population growth rate

The rule of 70 is a simple calculation to estimate doubling time

DT = 70 divided by population growth rate

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