Statistical Control in the Evaluation of an Asbestos Deposit

This paper discusses and compares methods of statistical analysis of the information relating to the evaluation of an asbestos deposit. From a study of 10-ft. lengths of drill core, the separate effects of visual evaluation errors were determined, as well as the deviations between evaluators and the deviations produced by a slight displacement in the center lines of the check drill holes. The importance of careful statistical analysis of such information is stressed.
Keywords: Central Limit Theorem, milling, Pacific Asbestos Corporation near, standard deviation, variance, CORE, Deposits, Evaluation, Evaluations, Milling, Ore, Value
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