Q2:-Define Variable and its types? Explain why we use variables in MIT?
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Variables represents the measurable traits that can change over the course of a scientific experiment. In all there are six basic variable types: dependent, independent, intervening, moderator, controlled and extraneous variables.A global variable is a variable that can be accessed in multiple scopes. This means that wherever you are in the program you can use that variable; get its current value or set its value to something else. Global variables are created using the initialize global name to block found in the Variables drawer.
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