Research Article Statistics at square one. V-Populations and samples. Br Med J 1976; 1 doi: https://doi.org/10.1136/bmj.1.6024.1513 (Published 19 June 1976) Cite this as: Br Med J 1976;1:1513 Article Related content Metrics Responses Peer review This article has a correction. Please see:Erratum - July 02, 1904 This is a PDF-only article. The first page of the PDF of this article appears below.