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

Multiple Choice

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

A) $7967.5
B) $7588.1
C) $8195.1
D) $8422.8