Given the mean
Find the variance (Var(X)) and the standard deviation, respectively.
? [1180.00, 34.35]
? [50.00, 7.07]
? [1738.95, 41.70]
? [9.00, 3.00]
? [65.33, 8.08]
None of the above.
\begin{tabular}{|c|c|c|c|c|c|}
\hline
x & 1 & 2 & 5 & 8 & 9 \\
\hline
P(X = x) & 1/7 & 9/35 & 1/5 & 2/7 & 4/35 \\
\hline
\end{tabular}
$\mu = 4.97$