Keyfitz, Nathan Estimates of sampling variance where two units are selected from each stratum. (English) Zbl 0078.33502 J. Am. Stat. Assoc. 52, 503-510 (1957). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 2 Documents Keywords:Statistics PDF BibTeX XML Cite \textit{N. Keyfitz}, J. Am. Stat. Assoc. 52, 503--510 (1957; Zbl 0078.33502) Full Text: DOI OpenURL