In Kirk M. Wolter's Policy Forum ;;Accounting for America's uncounted and miscounted'' (5 July, p. 12), there were two errors. The ;;Net undercount (%)'' expression in the left column of page 13 should have read [See equation in the PDF file].
在柯克·M·沃尔特的政策论坛中;;“美国漏计和重计的人口”(7 月 5 日,第 12 页)一文存在两处错误。第 13 页左侧栏中的“净漏计(%)”表述应为[参见 PDF 文件中的方程]。