A Stock Produced Returns of 14 Percent, 17percent, and -1

Multiple Choice

A stock produced returns of 14 percent, 17percent, and -1 percent over three of the past four years, respectively.The arithmetic average for the past four years is 6 percent.What is the standard deviation of the stock's returns for the four-year period?

A) 11.63 percent
B) 15.94 percent
C) 9.70 percent
D) 6.25 percent
E) 11.23 percent