Fisher, Sir R(onald) A(ylmer)
Statistician and geneticist, born in East Finchley, N Greater London, England, UK. He studied at Cambridge, and became statistician at the Rothamsted agricultural research institute (1919). There he developed his techniques for the design and analysis of experiments where it is not possible to control every element that could affect the outcome. His analysis of variance has become standard practice in medical, biological, and agricultural research. He also worked on genetics and evolution, and studied the genetics of human blood groups, elucidating the Rhesus factor. He became professor of eugenics at University College, London (1933--43), and of genetics at Cambridge (1943--57). After his retirement, he moved to Australia.