DataThe term data refers to qualitative or
quantitative attributes of a variable or set of variables.
Primary & Secondary data Data observed or collected directly from first-
hand experience is called primary data. Published data and the data collected in the
past or other parties is called secondary data
Method of collecting primary dataInterview or personal investigation methodObservation or indirect Investigation through appointment of
investigatorInvestigation through questionnairesMailed questionnairesTelephonic interviewE-mail method
Method of collecting secondary data
International organization. Ex: UNO, IMF, WB, ILO, FAO
Government and semi-government organization. Ex: PSC, LGRD, EC, UGC
Commercial organization. Ex: DSE, CSE, FBCCI
Newspaper periodicals. Ex: Times, News Week, The Economist
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