A Market Research Team Compiled the Following Discrete Probability Distribution $$\begin{array} { | c | c | } \hline x & P ( x ) \\\hline 0 & 0.30 \\\hline 1 & 0.50 \\\hline 2 & 0.10 \\\hline 3 & 0.10 \\\hline\end{array}$$

Multiple Choice

A market research team compiled the following discrete probability distribution for families residing in Randolph County.In this distribution, x represents the number of evenings the family dines outside their home during a week. $$\begin{array} { | c | c | } \hline x & P ( x ) \\\hline 0 & 0.30 \\\hline 1 & 0.50 \\\hline 2 & 0.10 \\\hline 3 & 0.10 \\\hline\end{array}$$ The standard deviation of x is _______________.

A) 1.00
B) 2.00
C) 0.80
D) 0.89
E) 1.09