Calculate variance and standard deviation. Explain your results and make

interpretation of your outcome.

\begin{tabular}{|c|c|} \hline \multicolumn{2}{|c|}{ Group 22 } \\ \hline Staff & Salary (E) \\ \hline 1 & 75000 \\ \hline 2 & 70000 \\ \hline 3 & 70000 \\ \hline 4 & 75000 \\ \hline 5 & 70000 \\ \hline 6 & 70000 \\ \hline 7 & 70000 \\ \hline 8 & 75000 \\ \hline 9 & 70000 \\ \hline 10 & 70000 \\ \hline 11 & 70000 \\ \hline 12 & 70000 \\ \hline 13 & 80000 \\ \hline 14 & 80000 \\ \hline 15 & 70000 \\ \hline 16 & 85000 \\ \hline 32 & 75000 \\ \hline 32 & 70000 \\ \hline 34 & 70000 \\ \hline 35 & 70000 \\ \hline 18 & 95000 \\ \hline \end{tabular} \begin{tabular}{|c|c|} \hline 28 & 10000 \\ \hline 29 & 75000 \\ \hline 30 & 70000 \\ \hline 31 & 70000 \\ \hline 32 & 70000 \\ \hline 33 & 70000 \\ \hline 34 & 70000 \\ \hline 35 & 70000 \\ \hline 36 & 80000 \\ \hline 37 & 70000 \\ \hline 38 & 70000 \\ \hline 39 & 70000 \\ \hline 40 & 80000 \\ \hline 41 & 70000 \\ \hline 42 & 70000 \\ \hline 43 & 70000 \\ \hline 44 & 80000 \\ \hline \end{tabular} \begin{tabular}{|c|c|} \hline 45 & 70000 \\ \hline 46 & 160000 \\ \hline 47 & 265000 \\ \hline 48 & 140000 \\ \hline 49 & 95000 \\ \hline 50 & 115000 \\ \hline \end{tabular}