Estimate the Variance for the Following Probability Distribution to Two $$\begin{array} { c | c c c c } x & 0 & 1 & 2 & 3 \\\hline \mathrm { P } ( x ) & 1 / 10 & 1 / 20 & 1 / 20 & 4 / 5\end{array}$$

Multiple Choice

Estimate the variance for the following probability distribution to two decimal places. $$\begin{array} { c | c c c c } x & 0 & 1 & 2 & 3 \\\hline \mathrm { P } ( x ) & 1 / 10 & 1 / 20 & 1 / 20 & 4 / 5\end{array}$$

A) $2.55$
B) $0.95$
C) $0.97$
D) $0.90$
E) 1.00