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2variable variable2 whatavariable $another
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cause and effect can be independent of each other. there is hardly anything that happens without a cause. dependent and independent variables affect each other. cause and effect may vary respectively in most events.
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which governs the state of a variable which provides a visual and audible alarm which indicates values of controlled variables which measures the state of the controlled variable
Ⅰ Ⅱ and Ⅲ Ⅰ and Ⅲ Ⅱ and Ⅲ