Abstract
SOME six years ago (September 1, 1887) Dr. Venn wrote to you pointing out the asymmetrical character of certain frequency curves occurring in physical and biological measurements. I have recently obtained a generalized form of the probability curve which fits with a great degree of accuracy such curves, and propose to discuss it at length shortly. Meanwhile I wish to point out that an asymmetrical point binomial may be readily fitted to such curves, although not with the completeness of the above referred to continuous curve. Let n be the number of events in a group, p the probability for single event, and q that against it; let c be the horizontal space selected as the basis of each rectangle forming the point binomial, and let a be the total area. Then we have the following diagram given by the point system:
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PEARSON, K. Asymmetrical Frequency Curves. Nature 48, 615–616 (1893). https://doi.org/10.1038/048615a0
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DOI: https://doi.org/10.1038/048615a0
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