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Collection of Data:Methods of Primary Data & Census:

Episode 02 of the video lectures of chapter 02 of Statistics for Economics, an Economics textbook for class 11; covers the personal interview, mailed questionnaire, telephonic interviw, pilot survey, census method their merit and demerits.
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License:[Source CIET, NCERT ]Aug. 12, 2020, 9:27 p.m.
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