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Population and Sample

Population​

Gathering data from the whole population of interest. A numerical value the summarize a characteristics of entire population is called PARAMETER.

Eg:

  • Elections in every 5 years
  • 10-year census
  • All smartphone users in India etc.

Sample​

Gathering data from the sample to make conclusions about the population. A numerical values that summarizes characteristics of sample is called STATISTIC.

Eg:

  • Opinion Polls,
  • Quality control checks in manufacturing units, etc.

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