(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 3.9 percent. Calculate the investment's expected return and its standard deviation. Should Gautney invest in this security? (Click on the icon . in order fo copy its contents into a spreadsheet) a. The investment's expected return is \%. (Round to two decimal places.) (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? (Click on the icon D 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 retum? a. Given the information in the table, the expected rate of return for stock A is. \%. (Round to two decimal places.)