Please calculate expected rate of return and standard deviation. Should Gautney invest in this security?

Score: 0 of 4 pts 3 of 5 (2 complete) Hw Score: 40%, 8 of 20 pts P7-6 (similar to) Question Help * (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 4.8 percent. Calculate the investment's expected returm and its standard deviation. Should Gautney invest in this security? Probability 0.05 0.35 0.55 0.05 Return 4% 3% 5% 9% a. The investment's oxpected return is %, Round to two decimal places) Enter your answer in the answer box and then click Check Answer remaining Clear Al Check