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http://omnologos.com/2020/06/22/why-would-savantacomres-boost-to-guarantee-at-least-500-black-asian-and-minority-ethnic-respondents-and-then-weigh-the-results-by-ethnicity-to-ensure-that-the-findings-are-representative-of-th/
Why would Savanta ComRes "boost to guarantee at least 500 Black, Asian and minority ethnic respondents"?