From Elsmar Cove Quality Assurance and Business Standards Wiki
(1) (also discrete data) can be described as the number of times something happens or not and is therefore an integer quantity. Attribute data cannot be logically subdivided; you cannot have 0.4 Of a ‘defect’.
(2) data arising by classifying the individual outcomes of a process into two or more categories or by counting the number of occurrences per unit of time, area or volume.
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