noun. 1. the quality of being subject to modification or differentiation of actions or feelings. 2. With regard to statistics and experimental model, the level to which those belonging to a group or populace vary or are different from one another.
noun. 1. the quality of being subject to modification or differentiation of actions or feelings. 2. With regard to statistics and experimental model, the level to which those belonging to a group or populace vary or are different from one another.