Following precautions should be taken in order to plan a statistical survey.

- Purpose of Statistical Survey: The clear-cut objective of the survey should be spelled out (fully written).
- Scope of Statistical Survey: Different aspects of survey should clearly be explained to achieve the fixed objectives.
- Definition of Terms: All terms in survey should be defined without any ambiguity, so that no unit is likely to fall in more than one category (units should be mutually exclusive).
- Stating the Hypothesis: Hypothesis to be tested from the data collected by using statistical survey should be stated in accordance with the objective of the survey.

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