The following are annual rates of return for T-bills in Ghana and Share on the Ghana Stock exchange Year Tbill Shares on Ghana Stock Exchange 2016 0:0 63 0.150 0.043 2017 0.08.1 2018 0.076 0.374 0.192 2019 07090 2020 0.106 0.085 a Compute the arithmetic mean rate of return and standard deviation of rates of return for the two series. [2 marks) b. Discuss these two alternative investments in terms of thelrarithmetic average rates of return, their absolute risk and their relative risk 16 marks) C Compute the geometric mean rate of return for each of these investments. Compare the arithmetic mean return and geometric mean return for each investment and discuss the difference between mean return's as related to the standard deviation of each series. (6 marks)