Abstract
After a review of the methods, advanced most recently, of estimating extreme values from data samples it is concluded that the straightforward method of moments offers the advantages of stability and simplicity without bias. The sample mean and standard deviation are computed, but the observations need not be ordered and the equation of estimate need not differ with sample size. A few charts are readily constructed, or used out of this text, to yield answers to the operational risks involved in a given period of time.

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