title: Metrical Venn diagrams.
abstract: A type of Venn diagram is described which enables the observed frequencies in a 2x2x2 contingency table to be compared with their expectations on the hypothesis of no associations.
authors.affiliation: Department of Community Medicine, University of Cambridge.
authors.forename: A W
authors.initials: AW
authors.lastname: Edwards
authors.forename: J H
authors.initials: JH
authors.lastname: Edwards
mesh_terms: D005787:Gene Frequency / Q000235:genetics*; D015234:HLA-A Antigens / Q000235:genetics; D015235:HLA-B Antigens / Q000235:genetics; D006801:Humans; D008128:Logic; D012204:Rh-Hr Blood-Group System / Q000235:genetics
chemical_list: D015234:HLA-A Antigens; D015235:HLA-B Antigens; D012204:Rh-Hr Blood-Group System