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Scientific study of human social behavior. As the study of humans in their collective aspect, sociology is concerned with all group activities—economic, social, political, and religious. The Columbia Encyclopedia

Census Data

This image is of a map of the United States of America. On top of the blue map there is a person on a bicycle, the caduceus symbol, a train, a house, a family, an oil well, a ship, a tractor, a courthouse, money, etc. Off to the right of the map it says, "United States Census Bureau."

CDC Centers for Disease Control

This image if of the letters CDC and Center's for Disease Control - U.S. Department of Homeland Security.  There is also the seal of Homeland Security with an eagle in the middle.

Data Analysis System (DAS)

This image if of the words:  DAS - Data Annalysis System