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What is Primary Data? - Mathematics

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Question

What is primary data?

Solution

The word data means information statistical data and of two types
(i) Primary data, (ii) Secondary data

Primary data: when an investigator collects data himself with a definite plan or design in his (her) mind is called primary data

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Chapter 22: Tabular Representation of Statistical Data - Exercise 22.1 [Page 15]

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RD Sharma Mathematics [English] Class 9
Chapter 22 Tabular Representation of Statistical Data
Exercise 22.1 | Q 3.1 | Page 15

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