The Following Is a List of Annual Advertising Expenses (In

Multiple Choice

The following is a list of annual advertising expenses (in dollars) for a group of states' mental health centers. $\begin{array} { c c c c } \hline 1500 & 11,000 & 7500 & 800 \\600 & 2350 & 3000 & 3800 \\500 & 6000 & 8000 & 500 \\1750 & 1250 & 50 & 3400 \\9000 & 890 & 1600 & 2200 \\\hline\end{array}$
-What is the standard deviation of the advertising expenses (rounded to a whole number) ?

A) $3284
B) $3285
C) $1975
D) $3241