2. A decision variable is a measurable quantity that may vary, or is subject to change, and can be controlled.
true
false
According to it's definition, a decision variable is a variable factor which can be changed for the purpose of assessing various options in a decision-making process; specifically a variable that the decision maker can control.
So, it is clear that the decision maker can control the decision variable; and the change in decision variable affects the system.
So, the given statement "A decision variable is a measurable quantity that may vary, or is subject to change, and can be controlled.", is a TRUE statement.
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