Origin, Alternative Expressions of Newcomb-Benford Law and Deviations of Digit Frequencies  

作　　者：Gene Whyman Gene Whyman(Physics Department, Faculty of Natural Sciences, Ariel University, Ariel, Israel)

机构地区：[1]Physics Department, Faculty of Natural Sciences, Ariel University, Ariel, Israel

出　　处：《Applied Mathematics》2021年第7期576-586,共11页应用数学（英文）

摘　　要：The Newcomb-Benford law, which describes the uneven distribution of the frequencies of digits in data sets, is by its nature probabilistic. Therefore, the main goal of this work was to derive formulas for the permissible deviations of the above frequencies (confidence intervals). For this, a previously developed method was used, which represents an alternative to the traditional approach. The alternative formula expressing the Newcomb-Benford law is re-derived. As shown in general form, it is numerically equivalent to the original Benford formula. The obtained formulas for confidence intervals for Benford’s law are shown to be useful for checking arrays of numerical data. Consequences for numeral systems with different bases are analyzed. The alternative expression for the frequencies of digits at the second decimal place is deduced together with the corresponding deviation intervals. In general, in this approach, all the presented results are a consequence of the positionality property of digital systems such as decimal, binary, etc.The Newcomb-Benford law, which describes the uneven distribution of the frequencies of digits in data sets, is by its nature probabilistic. Therefore, the main goal of this work was to derive formulas for the permissible deviations of the above frequencies (confidence intervals). For this, a previously developed method was used, which represents an alternative to the traditional approach. The alternative formula expressing the Newcomb-Benford law is re-derived. As shown in general form, it is numerically equivalent to the original Benford formula. The obtained formulas for confidence intervals for Benford’s law are shown to be useful for checking arrays of numerical data. Consequences for numeral systems with different bases are analyzed. The alternative expression for the frequencies of digits at the second decimal place is deduced together with the corresponding deviation intervals. In general, in this approach, all the presented results are a consequence of the positionality property of digital systems such as decimal, binary, etc.

关 键 词：Benford’s Law Confidence Intervals in Benford’s Law Alternative Expression of Benford’s Law Benford’s Law for Different Numeral Systems Frequencies of Digits at the Second Decimal Place 

分 类 号：O17[理学—数学]