yep, all those corporations, politicians, churches and governments have been wasting their money for decades with these silly, meaningless surveys. they've been duped by the Pews of the world...at least, that's the results of the comments here. take a look at the statistical models used in these surveys (political polling for example) and compare their expectations with the final results aka. margins of error. without sampling, you'd have to ask every single person and, at some point, there is a diminishing return. Statistical theory has been proven again and again...not sure why i'm trying to change your minds...> 3.5 std. deviations.
When I look at the overall results, they do seem to fall into predictable levels. That, to me, adds validity. I only posted the survey because of the U.S. reputation with Islam and Chávez compared to our ally.