抄録
There are often phenomena in which very large or very small values are contained in hydrologic data. In estimating the distribution function of hydrologic amount, the decision of adoption or rejection of such data, which should be named as the singular value, is one of the most important and fundamental problems in hydrologic statistics. Moreover, the forecast of such singular value is also a very important problem.
There are, however, hitherto no studies on the criteria for adoption or rejection and forecast of such singular values.
In this paper, first, the relation has been established between the probable singular value and its probability, applying the concept of two-sample theory on normal sample. Next, the criterion for adoption or rejection of a singular value has been proposed using the concept of the binomial distribution, and some practical tables have been prepared.
