Recent studies have demonstrated that principal component analysis (PCA) can detect the presence of population mixture and admixture in a sample and thus can be used to correct population ...

Historically, public opinion surveys have relied on the ability to adjust their datasets using a core set of demographics – sex, age, race and ethnicity, educational attainment, and geographic region ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

China has started its fourth one-percent national sample census, covering a population of about 14 million. The census takers are to be equipped with a personal digital assistant or PDA for the first ...