Maputo Development Bank has a portfolio of two projects worth R10 million . One project has an investment of R6million, expected return of 9 % and a standard deviation of 15%. The other project has an investment of R4million has an expected return of 4% and a standard deviation of 11%. It is determined that the covariance between the two projects is 4%. Determine the expected return and standard deviation of the portfolio. (10marks)