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Sources and Precautions of Secondary Data

Published and unpublished sources, precautions.

Notes

Sources and Precautions of Secondary Data

Class 11 Statistics — Published and Unpublished Sources, Limitations, and Precautions

Published Sources of Secondary Data

Unpublished Sources

Unpublished Secondary Data
When data collected by someone is not published and is taken by other persons for investigation.
Example: Reports prepared by private investigation companies. Many investigations are of private nature and findings are not published — usually meant for use of members only.

Limitations of Secondary Data

Precautions in Using Secondary Data