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MATH 156: Intro to Statistics: Polls and Surveys

Private Sector Data

Commercial firms collect and publish data and statistics as a paid service to clients or to sell broadly. Examples include marketing firms, pollsters, trade organizations, and business information. This information is almost always fee-based and may not always be available for public release. 

When using these sources, make sure to evaluate the organization the produces the information to make sure they are not biased.

Polls and Surveys