found: Work cat.: Defects of properties in mathematics, c2002:t.p. (Defects) p. 2 of cover (quantitative characterizations of the "deviation from a (given) property", called the "defect of a property")
found: Eric Weisstein's World of mathematics www webpage, Aug. 6, 2002(under probability and statistics, error analysis: Deviation: the difference of a quantity from some fixed value, usually the "correct" or "expected" one)
notfound: Dictionary of mathematics, 1999;Encyclopedia of mathematics, 1988-
