Theory of Attributes- Basic concept and their applications: ATTRIBUTES: Literally, an attribute means a quality or characteristic.Theory of attributes deals with qualitative characteristics which not amenable to quantitative measurements are and hence need slightly different statistical treatment from that of the variables. Examples of attributes are drinking,smoking, blindness, health, honesty, etc. An attribute may be marked by its presence (possession) or absence (dispossession) in member of given population. It may be pointed out that the methods of statistical analysis applicable to the study of variables can also be used to a great extent in the theory of attributes and vice-versa. For example, the presence or absence of an attribute may be regarded as changes in the values of a variable which can possess only two values, viz., 0 and 1. NOTATIONS: Suppose the population is divided into two classes according the to the presence or absence of a a single attr
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