explain the meaning of sampling survey. what are its advantages and disadvantages?
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Explanation:
A sample survey is a survey which is carried out using a sampling method, i.e. in which a portion only, and not the whole population is surveyed.
Advantages of Sample .
compared with Censuses: Reduces cost - both in monetary terms and staffing requirements. Reduces time needed to collect and process the data and produce results as it requires a smaller scale of operation.
Disadvantages of Sampling
Disadvantages of SamplingSome of the disadvantages are: ... Improper selection of sampling techniques may cause the whole process to defunct. Selection of proper size of samples is a difficult job. Sampling may exclude some data that might not be homogenous to the data that are taken.
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