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• Albinism in dogs AI翻译
  作者：Pearson, K; Usher, CH
  摘要：In breeding experiments on albino Pekinese and black Pomeranians, dogs were produced with pale gray or buff coats due to diffuse pigment, which the authors term Cornaz albinos; also piebald Cornaz and white, which they term skewbald. Two white albinos never gave rise to dogs with dark eyes but could give rise to Cornaz albinos. Two Cornazes never produced dogs with dark eyes; but in one case Cornaz skewbald X white albino produced dogs with pigmented coats and dark eyes. The simple Mendelian t...
• Some notes on sampling tests with two variables. AI翻译
  作者：Pearson, ES
  摘要：R. A. Fisher''s test of goodness of fit of regression curves involves the assumption that the y arrays are homoscedastic normal curves. However, experimental sampling from a population with Type III curves ([beta]1 = .2; [beta]2=3.3) for y arrays and [sigma]x ranging from 5.7 to 4.6 agrees well with Fisher''s test. For markedly platykurtic or leptokurtic arrays Fisher''s test is not applicable. Methods are given for integrating f([theta]), which is involved in Fisher''s test. In experimental s...
• Studies in the theory of sampling. AI翻译
  作者：Pepper, J
  摘要：(I.) General values for any distribution and a limited sampled population have been found for: mean values of the product moments, p11, p 12, P21, P22, p 31, P13 and consequently of m2, m 3, m4; standard deviations of p11, p 12, p21 and consequently of m2 and m3; correlations between m x, mv, [sigma]x2, [sigma]y2, p11. (II.) General values for any distribution and an infinite sampled population have been found for: the standard deviations of p31, p13, p22 and consequently of m4; the 3rd and 4t...
• On the standard error of the mean square contingency. AI翻译
  作者：Kondo, T
  摘要：The mean and standard error of [PHI]22, in which the marginal totals are given their population values, have been derived by Pearson and Young. In this paper 1st and 2nd approximations are derived for the mean and standard error of [PHI]12, in which the marginal totals are given their values in the sample. From these results are derived the mean and standard deviation of C2, the coefficient of mean square contingency. Experimental sampling shows good agreement with theory. The distributions of...
• Note on Dr Craig's paper. AI翻译
  作者：Pearson, ES
  摘要：A numerical examination of formulas for the semi-invariants of the standard deviation and unspecified[beta]1 of samples from a Type III population.
• The skull in relation: (I) To the prediction of its capacity, (II) To the pre-eminence of the left hemisphere. AI翻译
  作者：Hoadley, MF
  摘要：Internal diams. are more closely correlated with capacity than external, the gain in accuracy of prediction being 23%. Thickness of the bone is only slightly correlated with external measurements. The mean internal length is significantly greater on the right side than on the left. This result agrees with that of Braune on brain weight but contradicts the doctrine that the left hemisphere is the larger in right handed persons. The proportion of skulls in which the right side is longer than the...