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Mathematics 7 Online
OpenStudy (anonymous):

What is the difference between non-extraneous and extraneous?

OpenStudy (calculusxy):

an extraneous variable is one which is not part of the experimental situation: it is not being controlled like the independent and dependent variables. Now, a confouding variable is any thing that confuses the experimental results, and this might be something to do with the experiment or it might be a an extaneous variable. yahoo answers

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