(b) Compute monthly stock return of each stock in your portfolio for the last 12 months. Based on the stock return data, decide which investment appears to be riskier. (Show your answers in an organised tabular format) (20 marks)

(c) Calculate the average monthly stock return and standard deviation of returns for each stock over the last 12 months. (30 marks)

(d) Compute covariance and correlation between each possible pair of stocks in your portfolio. (10 marks)