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Francis Galton proposed to split the money available for the first two prizes in a competition according to some ratio X, depending on the marks of the three best competitors, but invariant under change of location or scale of the marks. Assuming normality, Galton found that EX is about .75 and empirically he observed that X is nearly uniformly distributed between and 1. Our main purpose is to show that Galton was indeed right for a wide class of underlying distributions. As the number of competitors tends to ∞, the ratio X tends (in distribution) to a uniform random variable.  相似文献   

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A discrete uniform distribution is defined over the integers 1, 2, …, k. Following Tenenbein, who investigated the point estimation of k for a sample drawn without replacement, this paper considers a number of point estimators of k for sampling with replacement and presents conservative confidence sets for k for both methods of sampling.  相似文献   

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Sir Francis Galton, scientist, African Explorer and statistician, was a key figure in statistical history. He was the man who devised the statistical concepts of regression and correlation. He was also Charles Darwin's cousin. And, inspired by his reading of Darwin, he was the founder of eugenics: the science of improving the human race through selective breeding. Nicholas Gillham tells of a darker side to statistics and heredity.  相似文献   

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高尔顿发现相关与回归的历史回顾与反思   总被引:1,自引:1,他引:0  
以大量的历史文献为依据,从技术角度细致地追溯了19世纪末英国学者佛朗西斯·高尔顿发现相关与回归的历史过程.向读者展示了这位伟大学者的统计思想从产生到成熟的过程,提出若干相关问题的思考与见解.  相似文献   

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In this article we show that several leading natural scientists, statisticians and social scientists born between 1730 and 1930 are closely related by marriage, thereby forming what Annan (Studies in social history: a tribute to C. M. Trevelyan, Longmans, Green, London, pp 241–287, 1955) has named an Intellectual Aristocracy. We also establish that the first three individuals mentioned in our title had family connections with Italy.  相似文献   

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