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The Following Data Represent the Salaries (In Thousands of Dollars)

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The following data represent the salaries (in thousands of dollars) of a sample of 13 employees of a firm: 26.523.529.724.821.124.320.422.727.223.724.124.828.2\begin{array} { | l | l | l | l | l | l | l | } \hline 26.5 & 23.5 & 29.7 & 24.8 & 21.1 & 24.3 & 20.4 \\\hline 22.7 & 27.2 & 23.7 & 24.1 & 24.8 & 28.2 & \\\hline\end{array} Compute the variance and standard deviation of the salaries.


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