Fisher, Ronald Aylmer, Sir, 1890-19622006-11-162006-11-161922Journal of the Royal Statistical Society, 85: 87-94 (1922)http://hdl.handle.net/2440/15173Reproduced with permission of Blackwell Publishers454290 bytesapplication/pdfen019: On the Interpretation of x2 from Contingency Tables, and the Calculation of P.Journal article