Find the present value of the cash flows at 13 percent interest:

Year Cash flow (Rs)

1 –

2 20,000 3 –

4 900 n weekly returns 0.52 0.08 Standard deviation 6.98 3.78 If the correlation coefficient = 0.31 and covariance = 8.30, calculate portfolio return and standard deviation for various compositions and plot a graph. Identify the minimum risk portfolio.