write an merit and demerits of sampling techniques
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Explanation:
Economical: It is economical, because we have not to collect all data. ...
Less Time Consuming: As no of units is only a fraction of the total universe, time consumed is also a fraction of total time. ...
Reliable: ...
Organisational Convenience: ...
More Scientific: ...
Detailed Enquiry: ...
Indispensable Method:
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