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作者:David, FN
摘要:In cases of doubt in which direction the probability integrals should be measured in applying the P[gamma]n test they may be measured in both directions and the more stringent result chosen. The application of the method to testing whether a series of regression coefficients may be taken as random samples from a bivariate normal population is given. The table may also be used to find P(x 2, n'').
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作者:Woo, TL; Morant, GM
摘要:In this quantitative study of transverse flattening of the face in different races, 8 measurements were taken: 10W = internal bi-orbital breadth between points, right and left, where fronto-malar sutures cross outer margins of orbits; Sub. IOW = subtense of nasion from IOW; SC (simotic chord) = minimum horizontal breadth of the 2 nasal bones; SS (simotic subtense) = minimum subtense from ridge of nasal bones to SC; MOW = mid-orbital breadth between points, right and left, where malar-maxillary...
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作者:Camp, BH
摘要:Spearman is incorrect in saying that the indeterminaleness of g is not of the same kind as that of x, y, and z in the equation of a plane and that the arbitrary term in the formula for g represents the inexactitude of one''s determination of g, not a multiple nature of g itself.
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作者:Steffensen, JF
摘要:Two modifications of Pearson''s mean square contingency, which are applicable to continuous probabilities.
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作者:Wicksell, SD
摘要:The error function of the second moment about a fixed point other than the mean of samples from an infinite normal population is a generalized form of Pearson''s type III frequency curve. The correlation function of the variances of samples from an infinite normal bivariate population has marginal distributions of type III of equal skewness. The regression of the means, variances and higher semi-invariants of the arrays is linear, but the correlation is not a function of the marginal constants...
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作者:Bell, J
摘要:The greatest authenticated number of children at one birth is 7. Cases of successive plural births and of the inheritance of plural births are discussed. In some cases inheritance is through the father and the pedigrees do not accord with R. A. Fisher''s conclusion that the paternal influence is exerted only in the production of diembryony. Whether the production of multiple births is a sign of vitality or of degeneracy is uncertain. The infant death rate is higher for plural than for single b...
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作者:Brandner, FA
作者单位:Iowa State University
摘要:Following the method of Pearson and Neyman for testing a composite hypothesis a criterion is obtained which for samples of equal size is exactly, and for other cases closely, related to the criterion (z1-z2) suggested by R. A. Fisher.
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作者:Pearson, K
摘要:For J-curves far removed from the exponential, Pearse''s and Martin''s corrections give more accurate results than Elderton''s.
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作者:McKay, AT
摘要:For samples of 4 from any universe 1 [less than or equal to] [beta]2 [less than or equal to] 7/3. For samples of 4 from a normal universe the most probable value of [beta]2 is 2.
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作者:Pearson, K
摘要:The equation and semi-invariants, differential equation, recurrence formulae, differential coefficients, mode and particular values of the frequency distribution of the difference of 2 variables, each of type III, are derived. The equation is closely allied to the Bessel function.