Which method collects information from every unit of a defined population?
Correct answer: A. Census method
- A. Census method
- B. Quota sampling
- C. Random sampling
- D. Pilot survey
Explanation
A census includes every member or unit of the population under study. Sampling methods collect information from only a selected part of the population.
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About Data Collection and Presentation
Data collection covers primary and secondary sources, qualitative and quantitative data, discrete and continuous variables, sampling methods and questionnaire design. Presentation includes frequency tables, grouped data, bar charts, histograms, pie charts, line graphs and cumulative frequency curves, with care over class intervals and misleading scales.
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