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A Company Had 80 Employees Whose Salaries Are Summarized in the Frequency

question 9

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A company had 80 employees whose salaries are summarized in the frequency distribution below. Find the standard deviation.  Salary (dollars)   Employees 5,00110,0001910,00115,0001415,00120,0001220,00125,0001625,00130,00019\begin{array} { r | c } \text { Salary (dollars) } & \text { Employees } \\\hline 5,001 - 10,000 & 19 \\10,001 - 15,000 & 14 \\15,001 - 20,000 & 12 \\20,001 - 25,000 & 16 \\25,001 - 30,000 & 19\end{array}


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