Assuming that the distribution of XYZ stock returns is a sample, what is the sample standard deviation?

Assuming that the distribution of XYZ stock returns is a sample, what is the sample standard deviation?

XYZ Corp. Annual Stock Prices

2003 2004 2005 2006 2007 2008

22% 5% -7% 11% 2% 11%


Assuming that the distribution of XYZ stock returns is a sample, what is the sample standard deviation?



A. 9.8%.

B. 72.4%.

C. 96.3%.



Answer: A


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