As a portfolio analyst at MBA Limited you are conducting an analysis of four alternative investment projects. Each project has a holding period of one year. The estimated rates of return for three alternative states of the economy are shown in the table below: State of the Economy Recession Average Boom Probability of each state occurring 0.2 0.6 0.2 Rate of return if A % state occurs B C M % % % 10 6 22 5 10 11 14 15 10 31 -4 25 Required: Calculate and interpret the expected return and standard deviation of each investment. (6 marks)