1.

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

Answer»

If 9i=1(xi5)=9 and 9i=1(xi5)2=45, then the standard deviation of the 9 items x1,x2,,x9 is



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