Manipulated variable refers to variables in an experiment or testing environment where a variable is manipulated to test for a change in outcomes. Manipulated variables are used in many different scenarios, including computer programming, system testing and drug testing.
Know MoreIn computer programming, variables are manipulated by using functions and commands. Addition, subtraction and testing for a value are all types of variable manipulation. You may also manipulate variables when debugging the application to test your error handling or outcomes.
The best example of manipulated variable testing is the use of placebos in drug testing. When measuring the rate of a patient's recovery, the main variable is the medication that is being tested. The variable is manipulated between the patient taking the tested medication, a placebo or an alternative treatment.
Learn more about AlgebraTo solve one-step equations, perform the correct mathematical operation to get the variable by itself, and perform the same operation on the other side of the equation. Solve the equation when the variable is by itself.
Full Answer >A contradiction equation is never true, no matter what the value of the variable is. In this case, the answer appears as the empty set, "{ }," or "phi" from the Greek alphabet, according to Seminole State College.
Full Answer >To solve an algebra problem, identify the variable for which you are solving, isolate the terms containing that variable, and then solve the equation by isolating the variable itself. Check your work by plugging your answer in place of the variable in the original equation and making sure it works.
Full Answer >In mathematical functions, the letter "x" is used as a variable, meaning it's used in place of an unknown value or values. The letter "x" is commonly used to represent a variable, a tradition that started with the French mathematician René Descartes in the 17th century.
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