What is a categoric, control, independent, dependent, continious variables?
LEST START WITH THIS FORMAL INTRO-DEFINITION: A variable is an attribute of a physical or an abstract system which may change its value while it is under observation. Examples include the height of a child, the temperature across a state, or the input to a function. This concept is relevant to and applied to almost all areas of mathematics, science and engineering. In mathematics and computer science, a variable is usually represented by one or more words or symbols, such as “time” or x. These abstractions are often assigned definite values later in the equation or program, but unknowns are often integral to an interface even without such a value. In the physical sciences and engineering, a variable is a quantity whose value may vary over the course of an experiment (including simulations), across samples, or during the operation of a system. In modeling, variables are distinct from parameters, although what is a variable in one context may be a parameter in another. In applied statist