distinguish between primary data and secondary data. which of these two sets of data is more reliable and why
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primary data is a data of raw material but secondary data is data of product.
Information accumulation assumes an exceptionally significant part in the factual investigation.
In explore, there are distinctive techniques used to accumulate data, all of which fall into two classifications,
i.e. essential information, and auxiliary information.
While essential information is gathered with a go for getting answer for the current issue, auxiliary information is gathered for different purposes.
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