In other words, enumeration of the entire population of a country or a region at a particular time is called a census. 3. Another character­istic feature of a census is simultaneity, which implies that the entire population is counted simultaneously at a specified point of time. Registration: Another source of population data is the registration of life or vital statistics. Census is the single largest source of data for population studies all over the world. This field is for validation purposes and should be left unchanged. Thus a population census is an official enumeration of the inhabitants of a country with statistics relating to their location, age, sex, marital status, literacy status, language, educational level, economic activity, number of children, migration, etc. Statistical information like census, population variables, health sta… less expenses. While primary data can be collected through questionnaires, depth interview, focus group interviews, case studies, experimentation and observation; The secondary data can be obtained through. Along with vital events, vital statistics also provide several, other ancillary information. They guide the city planners in planning measures for the future growth of cities regarding their future needs relating to housing, transport, flyovers, sanitation, pollution, water, educational institutions, etc. In many developing countries, the column in the household schedule relating to age is based on age groups 1-5, 6-10, etc. They are highly useful for making population projections. The modern population census has been defined by the United Nations as “the total process of collecting, compiling and publishing demographic, economic and social data pertaining, at a specified time or times, to all persons of a defined territory”. Often many persons are reluctant to provide correct information for fear that it may be used for some other purposes. IQRAMUL HASAN RAJU B-120602002 SONIA SHARMIN B-120602003 SHIFUL ISLAM SHISHIR B-120602004 MD. Similarly, in almost all the developing countries where the majority of people are illiterate and reside in rural areas, births and deaths are not reported to the registration authorities. The former, generally known as stock data, is represented by census and various social surveys, and provides information on size, distribution and various social, demographic and economic attributes of the population. 11. While the FAO publication provides information on agricultural population, the publication of ILO gives detailed data on the economically active population. 2. Population census is very useful for researchers, administrators, social organisations, etc. 10. On the other hand, some may be recorded more than once.”. Census is the single largest source of data for population studies all over the world. The latter, on the other hand, is known as flow data and relates to the registration of such events as births, deaths and migration. Following are the two sources of data: 1. In some countries, insurance companies maintain life tables relating to births and deaths and population trends. Even before Britain, in Sweden, a law for making of tabular records of population had come into existence as early as in 1748. In the study of history as an academic discipline, a primary source (also called an original source) is an artifact, document, diary, manuscript, autobiography, recording, or any other source of information that was created at the time under study. 1. That is why, only a few nations attempt to maintain population registers in spite of the wealth of population data that they provide. Before starting the census operations, some preliminary steps are taken by the Census Commission such as preparation of schedules, lists of households in each area, training of enumerators, etc. for countries of the world. By the middle of the nineteenth century, almost the whole of Europe had developed the system. Federal Statistical Agencies and the private sector develop and maintain a wide variety of data on various aspects of food markets and consumer food choice behavior. Population data are one of the bases of allocation of resources between the centre and states in a federal country. TOS 7. Furthermore, the census data of the more advanced countries are, in general, more accurate and reliable than those of the underdeveloped or developing countries. Normally we can gather data from two sources namely primary and secondary. The first periodical census began in the United States in 1790 and in Britain and France in 1802 (Cox, 1976:28; Woods, 1979:17). It contains the names, addresses, age, sex, etc. Each data source is designed to cover some, but not all, of the information needed to support key policy issues facing the Nation. is obligatory on the part of every citizen in a country. Vital Statistics: 3. The data so collected are tabulated, analysed and published. One of the major problems for a population geographer concerning census data is the difference in the level of detail provided, the accuracy of returns and the period of coverage across different countries of the world. It serves as an original source of information about the topic. These are: the state of population at a given time for a territorial unit including its geographical distribution and its composition, and the dynamics of population in time and space as a result of the combined effects of births, deaths and migration. Census. Census is the main source of demographic data. Prohibited Content 3. It provides data on such wide ranging topics as population size, area, density, urban population, population growth, age-sex composition, number of births and birth rate, number of deaths and death rate etc. Content Filtrations 6. 5. for the study of fertility. A census may also collect … The filled up census schedules are collected, examined and analysed statistically by the Census Commission. Data or information to help answer questions, understand a specific issue or test a hypothesis. Sample Surveys. In sample surveys data are obtained from selected samples and the extent of statistical error in the data is minimized by regulating the size of the samples. Primary data can be collected in a number of ways. In some countries, schedules are sent by post and the required information is collected. To conclude with Stephen, “Samples are like medicines. For conducting the census a reference period is determined by the Census Commission at that point of time. 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