but this is an investment subject

(a) As an analyst in Bullish Investment Company, you have derived the following information about 2 securities from past data: Securities Expected returns (%) 15 5 Standard deviation (%) 15 10 Y Correlation XY -0.7 Based on the above information, i) Calculate the portfolio expected returns and standard deviation if the investor invests 75% in Stock X and 25% in Stock Y. (5 marks) ii) Calculate the standard deviation for this portfolio, assuming the investor invests 75% in Stock X and 25% in Stock Y. (13 marks) What can you conclude about your results from the perspective of portfolio risk? (2 marks)