Lilly Lutz Blog #14

Today in class we started Unit 2, which is Introduction to Population. We learned about where the worlds population is distributed. We also defined Population, Demography and key demographic indicators. Lastly, we identified and tracked population statistics between nations.

Population refers to the size and distribution of the Earth's human population.

Demography is a social science which entails the statistical study of human populations.

There is 1 birth in the United States every 8 seconds and 1 death every 11 seconds. China has the largest population with 1.39 billion. The U.S. has the 3rd largest population with 325.72 million people. The United States has a steady increase, which shows that the US is developing at a good rate, while places like Germany, Denmark and France have a negative rate and there population is decreasing.

Key demographic indicators:

Rate of Natural Increase (RNI): a statistic that expressed a country or region’s annual growth rate; expressed as a percentage

Total Fertility Rate: a synthetic rate that expresses the fertility of a country or region; commonly understood as the average number of children a woman would give birth to during her reproductive years

Young and Old Populations: the proportion of young persons (i.e., those under 15 years of age) compared to the proportion of persons over 65 years of age; graphically illustrated by population pyramids, which also reflect sex differences of the population.

Population Pyramids: The visual representation of a nation’s population representing age and gender. This gives us a quick synopsis as to what is happening to a nation’s population (i.e. is it growing, stable, or shrinking).

Life Expectancy: the average number of years a person is expected to live from birth; influenced by health services, nutrition, and sanitation; used as an indicator of social development

The Demographic Transition: a conceptual model that tracks changes in birth and death rates for a country or region over time

Guesses

1.)     What is the total population of the Town of Bel Air?

11,000 people

2.)     What is the total population of Harford County?

250,000

3.)     What is the total population of Baltimore City (the largest city in the state)?

600,000

4.)     What is the total population of Maryland?

550,000

5.)     What is the total population of the United States?

325,000,000

Real Answers

1.)     What is the total population of the Town of Bel Air?

10, 109

2.)     What is the total population of Harford County?

252, 160

3.)     What is the total population of Baltimore City (the largest city in the state)?

614, 664

4.)     What is the total population of Maryland?

6.05 million

5.) What is the total population of the United States?

                  325.72 million

Guesses

1.)     Which state in the United States of America has the largest population?

Texas

2.)     Which city in the United States has the largest population?

Los Angeles

3.)     Which nation in the world has the largest population size?

China

4.) Which city has the largest population in the world?

                                    Hong Kong

Real Answers

1.)     Which state in the United States of America has the largest population?

Texas

2.)     Which city in the United States has the largest population?

New York

3.)     Which nation in the world has the largest population size?

China

4.)     Which city has the largest population in the world?

Chongqing



Crude Birth Rate (CBR): total number of live birth in a year for every 1,000 people alive in a society

Crude Death Rate (CDR): total number of deaths in a year for every 1,000 people alive in a society

Natural Increase Rate (NIR): percentage by which population grows in a year