Population Studies


    Briefly Explained Registration System and Sample Survey


Registration System
           This is the continuous universal recording of the information about a population in a particular area into the designated registers.
These registers help in analyzing changes in population, denoting the change direction and the amount of change that transpired.

 Examples of such registers are;
·         Vital registers
·         Migration records
·        Population registers

Vital Registration: vital registration may be defined as they contain the vital demographic events happening in the life of individuals throughout their life span. Some examples of the vital demographic events include
Birth, Marriage, Death,Dissolution of Marriage, etc

The registration system falls into the two categories;
Migration records and Population registers,
Migration records: It includes Travelling points like sea ports,airports, border post, serves as a collection site for information regarding movements of individuals in or out of a country.
Population Registers: these registers contain social, demographic and economic data about the individual.
    It is kept by the population commission as they make entries of individuals bio-data, starting from their birth throughout his life span to his death.

    
    Sample Survey:
        Sample survey is a method for collecting data about the members of a population, so that inferences can be drawn about the whole population. 

 Following are the some points about sample survey are given below;

·          Sample survey is designated to meet the immediate population information needs.
·      
             Sample survey is therefore a systematic way of eliciting information from a sub group of an entire population .
·       
      The results of sample surveys  gives a degree of accuracy in generalization of the entire population.
·       
      Sample survey are also more convenient is deriving social, cultural, economic and demographic situation of any population on the spot at a relatively low cost.
·       
      Consequently, individual researchers, research institutes, and multinational companies etc mostly makes use of these surveys.






         Thanks for your support
                A R Statistics




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