Question

How many non-sampling errors are there? and what are they?

Answer 1

Non-sampling errors fall under two categories: random and systematic.

Answer 2

Answer:

Nonsampling errors, therefore, arise mainly due to misleading definitions and concepts, inadequate frames, unsatisfactory questionnaires, defective methods of data collection, tabulation, coding, incomplete coverage of sample units etc. These errors are unpredictable and not easily controlled.

Explanation:

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