TY - JOUR

T1 - Revisiting the Benford law

T2 - When the Benford-like distribution of leading digits in sets of numerical data is expectable?

AU - Whyman, G.

AU - Ohtori, N.

AU - Shulzinger, E.

AU - Bormashenko, Ed

N1 - Publisher Copyright:
© 2016 Elsevier B.V.

PY - 2016/11/1

Y1 - 2016/11/1

N2 - The Benford law states that the frequencies of decimal digits at the first place of numbers corresponding to various kinds of statistical or experimental data are not equal changing from 0.3 for 1 to 0.04 for 9. The corresponding frequencies’ distribution is described by the logarithmic function. As is shown in the present article, the Benford distribution is a particular case of a more general mathematical statement. Namely, if a function describing the dependence between two measurable quantities has a positive second derivative, then the mentioned above frequencies decrease for digits from 1 to 9. The exact Benford distribution is valid for the exponential function only. Explicit expressions for frequencies of leading digits are obtained and specified for the power, logarithmic, and tangent functions as examples. The kinematic experiment was performed to illustrate the above results. Also the tabulated data on thermal conductivities of liquids confirm the proposed formula for frequencies’ distribution.

AB - The Benford law states that the frequencies of decimal digits at the first place of numbers corresponding to various kinds of statistical or experimental data are not equal changing from 0.3 for 1 to 0.04 for 9. The corresponding frequencies’ distribution is described by the logarithmic function. As is shown in the present article, the Benford distribution is a particular case of a more general mathematical statement. Namely, if a function describing the dependence between two measurable quantities has a positive second derivative, then the mentioned above frequencies decrease for digits from 1 to 9. The exact Benford distribution is valid for the exponential function only. Explicit expressions for frequencies of leading digits are obtained and specified for the power, logarithmic, and tangent functions as examples. The kinematic experiment was performed to illustrate the above results. Also the tabulated data on thermal conductivities of liquids confirm the proposed formula for frequencies’ distribution.

KW - Benford's law

KW - Exemplifications

KW - Functional dependence between quantities

KW - Generalization

UR - http://www.scopus.com/inward/record.url?scp=84975809637&partnerID=8YFLogxK

U2 - 10.1016/j.physa.2016.06.054

DO - 10.1016/j.physa.2016.06.054

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AN - SCOPUS:84975809637

SN - 0378-4371

VL - 461

SP - 595

EP - 601

JO - Physica A: Statistical Mechanics and its Applications

JF - Physica A: Statistical Mechanics and its Applications

ER -