You find a certain stock that had returns of 8 percent, −3 percent, 12 percent, and 17 percent for four of the last five years. The average return of the stock for the past five-year period was 6 percent. What is the standard deviation of the stock's returns for the five-year period?
A) 10.39 percent
B) 4.98 percent
C) 7.16 percent
D) 9.25 percent
E) 5.38 percent

Question

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The Answer of You find a certain stock that had returns of 8 percent, −3 percent, 12 percent, and 17 percent for four of the last five years. The average return of the stock for the past five-year period was 6 percent. What is the standard deviation of the stock's returns for the five-year period?
A) 10.39 percent
B) 4.98 percent
C) 7.16 percent
D) 9.25 percent
E) 5.38 percent

You Find a Certain Stock That Had Returns of 8