Today in the USA is National Pi Day (they write their dates funny, and they’re a day behind, so it’s 3.14.2013 there). The Washington Post has a set of the best and worst pie charts to celebrate. Many of them are classics, but there was one I hadn’t seen before, showing that it’s possible to do even worse with a pie chart of a bogus poll than the Herald-Sun does.
Thomas Lumley (@tslumley) is Professor of Biostatistics at the University of Auckland. His research interests include semiparametric models, survey sampling, statistical computing, foundations of statistics, and whatever methodological problems his medical collaborators come up with. See all posts by Thomas Lumley »