2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/86826Reconciliation of frequentist and Bayesian approaches to elementary treatment of data in nuclear and particle physics is attempted. Unique procedure to express the significance of a small count in presence of background is henceforth proposed and discussed in some detail.18 pages, 9 figures, titles to subsections added, typos correctedData Analysis, Statistics and Probabilitytext