Karl Pearson - English mathematician

He was an English mathematician and one of the founders of modern statistics. He applied statistics to biological problems of heredity and evolution. He developed the Chi square test of statistical significance. He was a co founder (with Galton and Weldon), editor and major contributor to the statistical journal, Biometrics. He was also editor of the Annals of Eugenics (1925-1936). His important publications are: (1) tables for statisticians and biometricians, (2) mathematical contribution to the theory of evolution a series of 18 papers, (3) tables of incomplete gamma function, and (4) tables of incomplete beta function.