a$.$ Use the data given to calculate annual returns for Goodman, Landry, and the Market Index, and then calculate

average returns over the five$-$year period. $($Hint: Remember, returns are calculated by subtracting the beginning

price from the ending price to get the capital gain or loss, adding the dividend to the capital gain or loss, and

dividing the result by the beginning price. Assume that dividends are already included in the index. Also, you

cannot calculate the rate of return for $2013$ because you do not have $2002$ data.$)$

Note: To get the average, you could get the column sum and divide by $5,$ but you could also use the function wizard, fx$.$

Click fx$,$ then statistical, then Average, and then use the mouse to select the proper range. Do this for Goodman and then

copy the cell for the other items.

b$.$ Calculate the standard deviation of the returns for Goodman, Landry, and the Market Index. $($Hint: Use the

sample standard deviation formula given in the chapter, which corresponds to the STDEV function in Excel.$)$

Use the function wizard to calculate the standard deviations.