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14 votes
14 votes
The data shows the total number of employee medical leave days taken for on-the-job accidents in the first six months of the year 14, 7. 20, 8, 21, 14. Find the standard deviation The standard deviation is about (Type an integer or decimal rounded to the nearest hundredth as needed)

User DocOc
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1 Answer

13 votes
13 votes

Given the following question:

14, 7, 20, 8, 21, 14


\begin{gathered} =\sqrt[]{(1)/(n)\sum^n_(i\mathop=1)}(xi-s)^2_{} \\ \Sigma(xi-\mu)2=(\Sigma(xi-\mu)2)/(n) \\ (\mleft(14-14\mright)2+\ldots+14-142)/(2) \\ 14^2=14*14=196 \\ (196+\cdots+196)/(2)=(170)/(6) \\ (170)/(6)=170/6=\sqrt[]{28.333333333333} \\ =\sqrt[]{28.333333333333}=5.3229064742238 \\ 5.3229064742238*5.3229064742238=28.333 \\ 5.3229064742238 \\ 2<5 \\ SD=5.32 \end{gathered}

User Lendrick
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