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Collection of Primary & Secondary Data - 1 Video Lecture | Statistics for Economics - Class XI - Commerce

51 videos|41 docs|12 tests

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Video Timeline
Video Timeline
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00:09 Methods of Collecting Data
00:30 How primary data is collected?
04:48 Drafting the questionnaire
07:19 A Specimen Questionnaire
08:05 Methods of collecting primary data
25:32 Methods of collecting secondary data
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FAQs on Collection of Primary & Secondary Data - 1 Video Lecture - Statistics for Economics - Class XI - Commerce

1. What is the difference between primary and secondary data?
Ans. Primary data refers to the data collected directly from original sources, while secondary data is obtained from already published or existing sources.
2. How can primary data be collected?
Ans. Primary data can be collected through methods such as surveys, interviews, observations, experiments, or by direct measurement.
3. What are the advantages of using secondary data?
Ans. Some advantages of using secondary data include cost-effectiveness, time-saving, availability of large datasets, and the ability to compare and analyze data from different sources.
4. What are the disadvantages of using secondary data?
Ans. Disadvantages of using secondary data include potential inconsistencies or inaccuracies in the data, limited control over the data collection process, and the possibility of outdated or incomplete information.
5. How can researchers ensure the reliability of secondary data?
Ans. Researchers can ensure the reliability of secondary data by critically evaluating the credibility and trustworthiness of the sources, cross-checking information from multiple sources, and using data from reputable organizations or institutions.
51 videos|41 docs|12 tests
Video Timeline
Video Timeline
arrow
00:09 Methods of Collecting Data
00:30 How primary data is collected?
04:48 Drafting the questionnaire
07:19 A Specimen Questionnaire
08:05 Methods of collecting primary data
25:32 Methods of collecting secondary data
More
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