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How are television viewing statistics obtained?

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Answer:

A sample of people with a demographic representative of the population is selected to provide data, and they either keep a diary of the shows they watch and report them, or they are provided with a device connected to their TV that monitors, records, and reports their television viewing behavior. The rest is basic statistical methods.

http://en.wikipedia.org/wiki/Nielsen_ratings

First answer by ID3489053797. Last edit by ID3489053797. Question popularity: 1 [recommend question].

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