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The Demography of the World Population from 1950 to 2100. Data source: United Nations — World Population Prospects 2017. Demography (from Ancient Greek δῆμος (dêmos) 'people, society' and -γραφία (-graphía) 'writing, drawing, description') [1] is the statistical study of human populations: their size, composition (e.g., ethnic group, age), and how they change through the ...
Demographic statistics are measures of the characteristics of, or changes to, a population. Records of births, deaths, marriages, immigration and emigration and a regular census of population provide information that is key to making sound decisions about national policy.
In demography, demographic transition is a phenomenon and theory which refers to the historical shift from high birth rates and high death rates to low birth rates and low death rates, as societies attain more technology, education (especially of women) and economic development. [1]
Birth rates also vary within the same geographic area, based on different demographic groups. For example, in April 2011, the U.S. CDC announced that the birth rate for women over the age of 40 in the U.S. rose between 2007 and 2009, while it fell among every other age group during the same time span. [ 100 ]
Hindi and Urdu are the official languages of the state, whilst the majority of the people speak one of the Bihari languages – Bhojpuri, Magadhi, Maithili or Angika. Maithili is also one of the recognised regional languages of India as per the Eighth Schedule of the Constitution of India.
A demographic profile is a form of demographic analysis in which information is gathered about a group to better understand the group's composition or behaviors for the purpose of providing more relevant services. In business, a demographic profile is usually used to increase marketing efficiency.
The main ethnic groups are Gujaratis, Punjabis, Bengalis, Hindi-speaking people, Tamils, Telugus, Malayalis, Goan-Konkanis, Sindhis, Marathis, and Anglo-Indians. [188] Hindus comprise 49% of the British Indian population, Sikhs 22.1%, Muslims 13.9%, Christians nearly 10%, with the remainder made up of Jains (15,000), Parsis (Zoroastrians), and ...
Population distribution by age and sex for Angola in 2005. A population pyramid (age structure diagram) or "age-sex pyramid" is a graphical illustration of the distribution of a population (typically that of a country or region of the world) by age groups and sex; it typically takes the shape of a pyramid when the population is growing. [1]