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YoungBuffalo | 01:28 Fri 03rd Sep 2004 | How it Works
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why is it important aht a controlled experiment contain only one independent variable?
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if you heve two variabless, say A and B then which had an impact on your experiment? That's why you select one and keep the other constant - that way u will know if it had any effect on your experiment
06:19 Fri 03rd Sep 2004

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