一様分布(uniform distribution)の仮定
The third and last set of statistical analyses involved the distribution of in- significant digits in the count data. These analyses were based on the weIl known assumption that leading digits in random numerical experimental data follow the discrete uniform distribution. Unfortunately, the digits analyzed were not the leading, significant, digits in the counts. Moreover, which digits were deemed "insignificant" for the analyses, suggested serious subjectivity on the part of the ORI.
上記の文章は、このグラフと関連したことを書いているようだ。著者は、Nora Bohossian氏。