For\[\left( 2n+1 \right)\] observations \[{{x}_{1}},{}^{-}{{x}_{1}},\,\,{{x}_{2}},{}^{-}{{x}_{2}},\,\,...,\,\,{{x}_{n}},\,{{\,}^{-}}{{x}_{n}}\] and 0, where all x's are distinct, let SD and MD denote the standard deviation and median, respectively. Then which of the following is always true?

Nothing can be said in general about the relationship between SD and MD

For\[\left( 2n+1 \right)\] observations \[{{x}_{1}},{}^{-}{{x}_{1}},\,

1.	For\[\left( 2n+1 \right)\] observations \[{{x}_{1}},{}^{-}{{x}_{1}},\,\,{{x}_{2}},{}^{-}{{x}_{2}},\,\,...,\,\,{{x}_{n}},\,{{\,}^{-}}{{x}_{n}}\] and 0, where all x's are distinct, let SD and MD denote the standard deviation and median, respectively. Then which of the following is always true?
A.	SD>MD
B.	SD>MD
C.	SD=MD
D.	Nothing can be said in general about the relationship between SD and MD
Answer» C. SD=MD

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For\[\left( 2n+1 \right)\] observations \[{{x}_{1}},{}^{-}{{x}_{1}},\,\,{{x}_{2}},{}^{-}{{x}_{2}},\,\,...,\,\,{{x}_{n}},\,{{\,}^{-}}{{x}_{n}}\] and 0, where all x's are distinct, let SD and MD denote the standard deviation and median, respectively. Then which of the following is always true?

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