The answers are provided and highlighted please show all work and how to get the answers.

a. Use the data given to calculate annual returns for Grosman, Landow, 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 2016 because you do not have 2015 data.) Data as given in the problem are shown below Grosman Industries Yearl Stock Price Dividend 2021 $26.88 $1.74 2020 $23.13 $1.60 2019 $25.75 $1.51 2018 $17.13 $1.44 2017 $18.06 $1.36 2016 $12.44 $1.29 Landow Incorporated Stock Price $74.13 $79.45 $74.13 $86.88 $91.00 $84.63 Market Index Dividend Includes Divs. $4.51 17,496.97 54.36 13,179.55 $4.14 13,020.97 $3.76 9,652 05 $3.39 8,404.421 $3.01 7,059.96 We now calculate the rates of return for the two companies and the index: 2021 2020 2019 2018 2017 Grosman 23.7% 4.0% 59.1% 2.8% 56.1% Landow -1.0% 13.1% -9.9% -0.4% 11.5% Index 32.8% 1.2% 34.9% 14.8% 19.0% Average 27.6% 2.7% 20.6% 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 Grosman and then copy the cell for the other items. b. Calculate the standard deviation of the returns for Grosman, Landow, and the Market Index. (Hint: Use the sample standard deviation formula given in the chapter, which corresponds to the Use the function wizard to calculate the standard deviations. Grosman 29.3% Landow 9.6% Index 13.8% Standard deviation of returns On the basis of the standard deviation, Grosman looks more risky than Landow