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

Essay

The following data represent the salaries (in thousands of dollars) of a sample of 13 employees of a firm: $\begin{array}{|l|l|l|l|l|l|l|}\hline 26.5 & 23.5 & 29.7 & 24.8 & 21.1 & 24.3 & 20.4 \\\hline 22.7 & 27.2 & 23.7 & 24.1 & 24.8 & 28.2 & \\\hline\end{array}$ Consider the following population of measurements: $$\begin{array} { | l | l | l | l | l | l | l | l | l | l | } \hline 162 & 152 & 177 & 157 & 184 & 176 & 165 & 181 & 170 & 163 \\\hline\end{array}$$ a. Compute the mean.
b. Compute the median.
c. Compute the variance and the standard deviation.