| http://www.w3.org/ns/prov#value | - every 10 years on the basis of the results of the census ??? ??? ??? sample a relatively small proportion of people who chosen in a survey so as to be representative of the whole ??? ??? ??? sampling error the level of confidence in the findings of a public opinion poll ??? ??? ??? beats specific locations from which news frequently emanates, such as Congress or the White House.
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