Calculate the Standard Deviation of X for the Probability Distribution

Multiple Choice

Calculate the standard deviation of X for the probability distribution. $$\begin{array} { | c | c | c | c | c | c | c | } \hline x & - 20 & - 13 & 1 & 13 & 20 & 25 \\\hline P ( X = x ) & 0.1 & 0.1 & 0.1 & 0.2 & 0 & 0.5 \\\hline\end{array}$$ Round your answer to two decimal places if necessary.

A) 261.69
B) 162.19
C) 1,757.64
D) 11.9
E) 16.18