What does Demographics mean?

• Demographics- the statistical data of a specific population

• Scientists who study this data are called Demographers

•How do you define demographic concepts?(7.3.8) (7.2.3)•How will the earth’s physical and cultural environments change as populations change?(7.3.20)•How do you define demographic concepts?(7.3.8) (7.2.3)•How will the earth’s physical and cultural environments change as populations change?(7.3.20)

How are Demographics used?

• Demographics are used to discover things out about a population, such as….

Average Age IncomeBirth Rate Death RateEducation RaceDisabilities LocationEmployment Rate Life expectancy

Demographic Concepts

• Population- total number of people in a specific area

• Population Distribution- describes how the population of an area or the world is spread out

• The world’s population is spread out unevenly.

Population Distribution

Population Density• Population Density- the average number of

people who live in a square mile

• If a country has a high density, it means people are crowded together- urban areas

• If a country has a low density, it means that people are more spread out- rural areas

• Japan has a high population density, with about 25, 000 people per square mile

Population Growth

• Growth Rate- the rate at which the world’s population increases over time

• GROWTH RATES CHANGE CONSTANTLY!!!

• To find the world’s growth, demographers must consider other statistics

Population Growth• Birth rate- the number of live births each year

per 1000 people

• The average birth rate for the world is 20 births per 1000 people

• Niger’s birth rate is 50 births

• Hong Kong has the lowest with 7 births

• The U.S. rate is about 14 births

Population Growth• Infant Mortality- the death rate of infants during

their first year of life

• The average infant mortality is around 43 infant deaths per every 1000 people

• Angola infant mortality is 184 infant deaths

• Singapore has the lowest with 2 infant deaths

• The U.S. rate is about 6 infant deaths

Population Growth• Death Rate- the number of deaths a year per 1000

people

• The average death rate for the world is about 8 deaths per 1000 people

• Swaziland in Africa has the highest at 30 deaths

• United Arab Emirates has the lowest at 2 deaths

• The U.S. rate is about 8 deaths

Quiz: Number your paper 1-10

• 1. _________ is the total number of people in a given area.• 2.__________is the total number of people living in an area.(per square

mile)• 3.__________is the annual number of births per 1000 people.• 4.__________is the process of moving from one place to live in another.• 5.The __________theory explains why people migrate.• 6.An _________ is a person who is leaving (exiting) a country to live

somewhere else.• 7.An _________is a person who is coming into a country to live.• 8.____________ is the death rate of infants during their first year of life.• 9.__________is the annual number of deaths per 1000 people.• 10.A _____________is a person who studies human populations

(demography).

Quiz: Number your paper 1-10

• 1. _________ is the total number of people in a given area.• 2.__________is the total number of people living in an area.(per square

mile)• 3.__________is the annual number of births per 1000 people.• 4.__________is the process of moving from one place to live in another.• 5.The __________theory explains why people migrate.• 6.An _________ is a person who is leaving (exiting) a country to live

somewhere else.• 7.An _________is a person who is coming into a country to live.• 8.____________ is the death rate of infants during their first year of life.• 9.__________is the annual number of deaths per 1000 people.• 10.A _____________is a person who studies human populations

(demography).