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> 81% of black Americans who had both the time and inclination to fill out a targeted web survey/ answer a landline phone call

Well, yes, that's basically how every poll works. The pollsters come up with what they think is a representative sample population, they send out surveys, some people respond, some don't.




Assuming it's similar polling to the UK there are all sorts of weighting and balancing to get truly representative samples within a margin of error.

Where the system is weakest is in the questions asked, as explained by Yes Prime Minister

https://www.youtube.com/watch?v=G0ZZJXw4MTA

I can't see the tables gallup produced to make their claim, without those I can't see why it's of any interest.




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