The last four years of returns for a stock are as shown here:

LOADING...

.Year 1 , 2 , 3 , 4

Return - 3.7% , + 27.9% , + 12.5% , + 3.6%

a. What is the average annual return?

b. What is the variance of the stock's returns?

c. What is the standard deviation of the stock's returns?

Note:

Notice that the average return and standard deviation must be entered in percentage format. The variance must be entered in decimal format.