CVL 323 Study Guide - Midterm Guide: Geodetic Datum, Level Set, Horizontal Plane
24 Sep 2017
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Eliminate by searching for outliers systematic errors or bias result from factors affected by the environment, instrument, and the observer. Conditions producing systematic errors conform to physical laws that can be modeled (cid:373)athe(cid:373)atically random errors or accidental errors. Remain after removing blunders and systematic errors i(cid:374) general they are the result of human and instrument imperfections. They are generally small and are likely to be negative or positive. They usually do not follow any physical law and therefore must be dealt with according to the mathematical laws of probability. Small (random) discrepancies are more likely to occur than large discrepancies discrepancy = difference between two or more measured or derived values of the same quantity. Precision = degree of consistency between measurements and is based on the sizes of the discrepancies in a data set: accuracy = measure of the absolute nearness of a measured quantity to its true value.
