document.write( "Question 456894: What is the variance of the following data?
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Algebra.Com's Answer #313504 by robertb(5830)\"\" \"About 
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\"mu+=+E%28X%29+=+%28600+%2B+470+%2B+170+%2B+430+%2B+300%29%2F5+=+1970%2F5+=+394\"\r
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