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Against All Odds: 14. Samples and Surveys

This free online video program "shows how to improve the accuracy of a survey by using stratified random sampling and how to avoid sampling errors such as bias. While surveys are becoming increasingly important tools in shaping public policy, a 1936 Gallup poll provides a striking illustration of the perils of undercoverage." This individual video is accessed by scrolling down to the "Individual Program Descriptions - 14. Samples and Surveys" and click the "VOD" icon at the top-right of the description.
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Date Issued 1988
Resource Type
Email Address
Date Of Record Creation 2005-03-24 02:25:57
Date Of Record Release 2005-05-12 12:26:27
Date Last Modified 2006-05-22 11:24:31
Statistical Topic
Material Type
Typical Learning Time Video Length 28min. 47sec.
Author Name Annenberg/CBP
Author Organization Consortium for Mathematics and Its Applications
Technical Requirements Windows media player, broadband connection, Java script enabled
Source Code Available
Intended User Role
Application Area
Cost involved with use
Math Level

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