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Statistics - Chapter 2 - Collection of data, Sources of data - Coggle…
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Sources of data
Secondary Data
Adopting data Collected by an agency or institution which already collected the data through statistical surveys.
Sources include: published journals, magazines, census, government documents, etc.
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Special Precautions and editing needs to be done since the data was collected for a different purpose.
Primary Data
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It is suitable, since questions specific to the research could be asked.
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No special precautions or editing needs to be done as data was obtained specifically for the project itself.