Astudent measures the range of sound frequencies that the human ear can hear by playing sounds for volunteers between 10 and 30,000 hertz and asking them to raise their hand if they were able to hear it. what type of variable is the independent variable in this experiment? a. categoric b. ordered c. continuous d. discrete
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Consider the story you just read. all but one of the choices below indicate that something is living.
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Astudent measures the range of sound frequencies that the human ear can hear by playing sounds for v...
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