Wednesday, May 22, 2013

Statistics is a method which is used to collect, organize, analyze statistical data and interpret the result. There are two types of statistical data. They are -
  • Primary data; and
  • Secondary data.
Primary data:
Primary data are those which are collected directly by the enumerators. Example- census, sample survey and so on.

Secondary data:
Secondary data are those which we can get from different sources. Example- vital registration system.

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