Returns for the Shields Company Over the Last Three Years $\begin{array}{cr}\text { Year } & \text { Return } \\\hline 2009 & 21.50 \% \\2008 & -12.50 \% \\2007 & 24.20 \%\end{array}$

question 65

Multiple Choice

Returns for the Shields Company over the last three years are shown below.What's the standard deviation of Shields' returns? (Hint: This is a sample,not a complete population,so the sample standard deviation formula should be used.) $\begin{array}{cr}\text { Year } & \text { Return } \\\hline 2009 & 21.50 \% \\2008 & -12.50 \% \\2007 & 24.20 \%\end{array}$

• A)19.94%
• B)20.45%
• C)20.97%
• D)21.49%

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