Demography measuring and modeling population processes free ebook

You cannot download interactives. Every few years, governments count the people living in their territories, a process called a census.

These counts help decide how best to allocate resources and determine political representation. Learn about the surprisingly ancient origins of the census and why this counting process is important to this day. Demography is the study of demographics, the social characteristics and statistics of a human population.

This study of the size, age structures, and economics of different populations can be used for a variety of purposes. Political candidates use the information to inform targeted campaigns. Scientists employ the data to answer research questions, and marketing teams use it for advertising purposes. Government and business policymakers use it to craft ideas and plan for the future.

Help your students understand demographics with these classroom resources. Epidemiology is the study of the occurrence and characteristics of illness within a population.

There will soon be seven billion people on the planet. By global population is projected to reach nine billion. Can the planet take the strain? Fertility can refer to the ability of soil to sustain plant growth, or it can refer to the number of live births occurring in a population.

Join our community of educators and receive the latest information on National Geographic's resources for you and your students. Skip to content. Image Old London Demographic Notebook Early demographic studies were often carried out by insurance agents to determine life insurance rates. Photograph by whitemay. Twitter Facebook Pinterest Google Classroom. Encyclopedic Entry Vocabulary. In a country where infant mortality rate is high the economic, social and health conditions of the country is regarded to be poor.

Infant mortality rate is calculated by dividing the number of deaths of the infants by the numbers of total live births of infants and multiplying by The formula can be written as follows:. The difference between the number of people in migrants and the number of out migrants is called net migration rate. The following formula can be used to calculate the net migration rate:. If the population growth rate is one percentage then the population of the certain place will double in seventy years.

Population doubling time can be obtained by dividing the population growth rate by The formula for calculating doubling time of population can be written as follows:. Birth, death and migration are the demographic components. The change in population size of any place or region mainly depends upon birth, death and migration. Fertility, mortality and migration are the demographic processes. The demographic processes of fertility, mortality and migration bring change in the size, composition and distribution of population.

Census is the total process of collecting, compiling, analyzing and publishing or otherwise dissimilating demographic, economic or social data pertaining to the people of the country or well delineated part of the country.

The primary source of population data in which the samples are chosen from various fronts and data is collected is called sample survey. It is the easiest method to collect the population data.

General fertility rate is the total number of birth divided by the total midyear population of the particular place multiplied by thousand. Age specific fertility rate is the total number of births of the specific age group divided by the population of the age group multiplied by thousand. The rate of number of people migrating to certain place is called the in-migration rate of that place.

The rate of number of people migrating from certain place is called the out-migration rate of that place. The sum of the rate of natural increase of population and the rate of in-migration is the population growth rate.

The rate in which the population increases because of more birth and less death is called the rate of natural increase. Back to Solutions. Chapters 1. Demography 2. Quality of Life 3. Environmental Status Of Nepal 4. Biodiversity 5. Population, Environment and Development 6. Disease, Nutrition, Tobacco, Alcohol and Drugs 7. Community Health. Previous Next. Answer the following questions: 1. What is demography? Write the major sources of population statistics. Ans: The major sources of population statistics are as follows: -Primary Sources -Census -Vital registration -Sample survey -Administrative records -Secondary sources -Organizations and institutions -Books -Journals -Newspaper 3.

Is sample survey a good source of population statistics? Justify your answer. What are the sources of demographic measures? Ans: The sources of demographic measures are as follows: -Birth -Death -Migration Birth is also the source of demographic measure because from birth following demographic measurement can be done.

Define crude birth rate. Write the formula of measuring crude birth rate. What do you mean by age specific fertility rate? Explain its importance and necessity. What is migration? How does it affect the population distribution of a place? What are the biological factors that affect birth? Explain any three of them with examples. Any three of them are described below: -Heredity: Heredity affects birth because the problems related to reproductive organs; reproductive process and infection of sexually transmitted diseases have negative effects on fertility.

Make a list of the factors affecting death rate and explain any four of them. Any four of them are described below: -Heredity: Longevity of life is characteristics of heredity.

What are the factors affecting migration? Explain with examples. They are described as follows: -Age: In both of the internal and international migration, young age people migrate more than the people of other age groups. Write short notes on: 1. Demographic measure The measurement of the three components of fertility, mortality and migration are necessary for the proper analysis of population.

Administrative records Administrative records are one of the sources of obtaining the population data. Priveledge Tsvuru rated it it was ok Sep 28, Irina rated it really liked it Nov 30, Damian rated it it was ok Jun 12, Catherine Schenck-Yglesias rated it really liked it Apr 12, Di Liang rated it it was amazing Apr 07, Miles Marsala rated it it was amazing Dec 16, Nirmal Gautam rated it really liked it Jul 05, Conrad rated it really liked it Aug 20, Liza rated it it was amazing Aug 16, James Simmerman rated it liked it Nov 08, CM rated it it was amazing Jun 25, Rachel rated it it was amazing Aug 26, James Cox rated it really liked it Nov 27, H rated it liked it May 23, Haley rated it it was amazing Dec 05, Stephanie rated it liked it Jan 18, Annie rated it it was amazing Nov 18, There are no discussion topics on this book yet.

Be the first to start one ». Readers also enjoyed. About Samuel H. Samuel H. Books by Samuel H. When Dana Schwartz started writing about a 19th-century pandemic ravaging Edinburgh in her latest book, Anatomy: A Love Story, she had no idea Read more Trivia About Demography: Measu No trivia or quizzes yet.