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9 August, 12:28

In a scientific experiment, the variable manipulated or controlled by the experimenter is called the

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  1. 9 August, 13:42
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    The variable manipulated or controlled by the experimenter is called the independent variable.

    Example:

    If the flow velocity at the bottom of a tank is measured by varying the height of water in the tank, we are measuring velocity as a function of water height.

    Therefore,

    water height = independent variable (controlled)

    velocity = dependent variable (measured in response to water height).

    Mathematically,

    v = f (h)

    where v = response variable (dependent)

    h = controlled variable (independent).
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