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If 9∑i=1(xi−5)=9 and 9∑i=1(xi−5)2=45, then the standard deviation of the 9 items x1,x2,⋯,x9 is |
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Answer» If 9∑i=1(xi−5)=9 and 9∑i=1(xi−5)2=45, then the standard deviation of the 9 items x1,x2,⋯,x9 is |
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