Table of the Values of the Differences of the Powers of Zero

The Probability Integral for Two Variables

“…A geometrical approach to problems connected with the normal bivariate surface (Nicholson, 1941) suggested a method for the direct integration of the surface which could be used to calculate a table which might be simpler in use than the present table of d/N calculated by Everitt (1912), Lee (1915), Lee (1927), and Elderton, Moul, Fieller, Pretorius & Church (1930) and republished in Tables for Statisticians and Biometricians, Part II. The results of this inquiry are here presented, and I must acknowledge the assistance which I have received in the preparation of the paper from Prof. E. S. Pearson and Mr N. L. Johnson.…”