(mathematics) A dependent variable thought to change as a function of changes in a predictor variable.

(software, object-oriented programming) A member variable that is associated with a class for which each object of the class has a separate copy.

(software, object-oriented programming) A member variable that is associated with a class of which a single copy exists.

(software, object-oriented programming) A variable that is associated with each instance of a class and can be accessed from all its methods.

(computing) A variable used to configure the operating system environment.

(statistics) A binary variable that takes a value of 0 or 1 to indicate which category an individual falls into.

(statistics) A binary variable whose value of 0 or 1 indicates which category an individual falls into.

(statistics) A variable that is not directly measured but is inferred by means of a mathematical model from one or more directly observed variables.

Any variable that is part of a Bernoulli process.

(astronomy) Any of a class of pulsating variable stars characterized by very red colours, pulsation periods longer than 100 days, and amplitudes greater than one magnitude in infrared and 2.5 magnitude at visual wavelengths.