Exploring Undercount of Young Children in 2020 Census by County – U.S. Census Bureau
The U.S. Census Bureau used two approaches to estimate net coverage error of the 2020 Census: DA, which uses birth and death records, data on international migration, and Medicare Enrollment data to produce population estimates that are compared to the census to estimate net coverage error. The Post-Enumeration Survey (PES) was conducted shortly after the census data were collected. The results of the survey were matched to the census results to produce dual-system estimates of the population, which are compared to the census to produce net coverage error estimates. While
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