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[" If "sum(k=1)^(0)(x(i)-5)=9" and "sum(...

[" If "sum_(k=1)^(0)(x_(i)-5)=9" and "sum_(k=1)^(9)(x-5)^(2)=45," then the standard deviation of th "],[" " "3],[" 1) "4],[" the standard deviation of the number "0" ."]

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