help me understand steps 1-4 on this assignment problems

Portfolio betas Personal Finance Problem Rose Berry is attempting to evaluate two possible portfolios, which consist of the same five assets held in different proportions. She is particularly interested in using beta to compare the risks of the portfolios, so she has gathered the data shown in the following table: a. Calculate the betas for portfolios A and B. b. Compare the risks of these portfolios to the market as well as to each other. Which portfolio is more risky? a. The beta for portfolio A is (Round to four decimal places.) Data table (Click on the icon here D, in order to copy the contents of the data table below into a spreadsheet.) Capital asset pricing model (CAPM) For the asset shown in the following table, use the capital asset pricing model to find the required return. (Click on the icon here b in order to copy the contents of the data table below into a spreadsheet.) The required retum for the asset is \%. (Round to two decimal places.)