Question Help P7-6 (similar to) 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 3.0 percent. Calculate the investment's expected return and its standard deviation. Should Gautney invest in this security? Probability 0.20 0.40 0.20 0.20 Return 6% 190 790 7% 8%