I need help with these questions

Your portfolio consists of 115 shares of CSH and 50 shares of EJH, which you just bought at $18 and $31 per share, respectively. a. What fraction of your portfolio is invested in CSH? In EJH? b. If CSH increases to $23 and EJH decreases to $28, what is the return on your portfolio? a. What fraction of your portfolio is invested in CSH? In EJH? The fraction invested in CSH is 57.2%. (Round to one decimal place.) The fraction invested in EJH is 42.8 %. (Round to one decimal place.) b. If CSH increases to $23 and EJH decreases to $28, what is the return on your portfolio? The return on the portfolio is %. (Round to one decimal place.) The last four years of returns for a stock are as shown here: 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. a. What is the average annual return? The average return is %. (Round to two decimal places.) A Data Table (Click on the icon located on the top-right comer of the data table below in order to copy its contents into a spreadsheet.) 2 Year Return 3 +11.7% -3.6% +28.5% +4.2% Print Done Use the data for Starbucks (SBUX) and Google (GOOG) B: to answer the following questions: a. What is the return for SBUX over the period without including its dividends? With the dividends? b. What is the return for GOOG over the period? c. If you have 30% of your portfolio in SBUX and 70% in GOOG, what was the return on your portfolio excluding dividends? a. What is the return for SBUX over the period without including its dividends? The return without the dividends is %. (Round to two decimal places.) 0 Data Table Date 2011-11-14 2012-02-06 2012-05-07 2012-08-06 2012-12-13 SBUX $43.64 $48.29 $55.48 $43.48 $53.18 Dividend $0.00 $0.17 $0.17 $0.17 $0.21 GOOG $613.00 $609.09 $607.55 $642.82 $659.05 Dividend 2 $0.00 $0.00 $0.00 $0.00 $0.00 Print Done Ten annual returns are listed in the following table: - 19.3% 16,5% 17.7% -49.5% 43.3% 1.2% -16.6% 45.7% 44.8% -3.3% a. What is the arithmetic average return over the 10-year period? b. What is the geometric average return over the 10-year period? c. If you invested $100 at the beginning, how much would you have at the end? a. What is the arithmetic average return over the 10-year period? The arithmetic average return over the 10-year period is (Round to four decimal places.) Suppose Intel stock has a beta of 1.4, whereas Boeing stock has a beta of 0.8. If the risk-free interest rate is 5.6% and the expected return of the market portfolio is 10.6%, according to the CAPM, a. What is the expected return of Intel stock? b. What is the expected return of Boeing stock? c. What is the beta of a portfolio that consists of 60% Intel stock and 40% Boeing stock? d. What is the expected return of a portfolio that consists of 60% Intel stock and 40% Boeing stock? (There are two ways to solve this.) a. What is the expected return of Intel stock? Intel's expected return is %. (Round to one decimal place.)