(Related to Checkpoint 7.1) (Expected rate of return and risk) B. J. Gautney Enterprises is evaluating a security. One-year Treasury bills are currently paying 2.9 percent. Calculate the investment's expected return and its standard deviation. Should Gautney invest in this security? (Gick on the icon [ in order to copy its contents into a spreadsheet.) a. The investment's expected return is \%. (Round to two decimal places.) (Expected rate of return and risk) Syntex, Inc. is considering an investment in one of two common stocks. Given the information that follows, which investment is better, based on the risk (as measured by the standard deviation) and returm? (unon un wie wom wi in oroer to nopy its contents info ab speadsheet.) a. Given the information in the table, the expected rate of return for stock A is \%6. (Round to two decimal places.) (Grok on the icon D in order to copy its contents into a spreadsheet). a. Calculate the annual rate of retum for each year from the above information b. What is the arithmetic average rate of return earned by investing in Brangus Cattle Company's stock over this period? c. What is the geometric average rate of retum eamed by investing in Brangus Cattle Company's stock over this period? d. Which type of average rate of retum best describes the average annual rate of return eamed over the period (the arithmetic or geometri