G Thumb, the Leading Salesperson for the Moe D ">$\text { cellpadding }=" 0 \text { " cellspacing }=" 0 " \text { width }=" 62 \% " \text { border }=" 0 ">$

G. Thumb, the leading salesperson for the Moe D. Lawn Landscaping Company, turned in the following summary of clients contacted for the week of October 23-28: ">$\text { cellpadding }=" 0 \text { " cellspacing }=" 0 " \text { width }=" 62 \% " \text { border }=" 0 ">$
$$\begin{array} { l l } \text { Date } & \begin{array} { l } \text { Number of Clients } \\\text { Contacted }\end{array} \\\text { Oct. } 23 & 12 \\\text { Oct. } 24 & 8 \\\text { Oct. } 25 & 9 \\\text { Oct. } 26 & 14 \\\text { Oct. } 27 & 8 \\\text { Oct. } 28 & 18\end{array}$$ Find the variance and standard deviation, rounded to the nearest hundredth.

A) variance: $13.25$ standard deviation: $3.64$
B) variance: $11.50$ standard deviation: $3.64$
C) variance: $3.64$ standard deviation: $13.25$
D) variance: $11.50$ standard deviation: $13.25$
E) variance: $132.25$ standard deviation: $3.64$