Deviation (d)

Deviation (d) : The difference in value of an item in a set of items and the mean (x bar) of the set as expressed in the formula d = x-x bar, where d = deviation, x = the value of an item in a set, and x bar is the mean or average of all items in the set.

[Category=Data Quality ]

Source: Larry English, http://www.iaidq.com/main/glossary.shtml , 23-Jan-2009 12:45

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Deviation - In numerical data sets, the difference or distance of an individual observation or data value from the center point (often the mean) of the set distribution.

[Category=Quality ]

Source: American Society for Quality, 18 September 2010 09:15:55, http://www.asq.org/glossary/