A portfolio consisted of two risky assets A and B 1) Please calculate the portfolios expected return and portfolio's standard deviation. 2) If we change the Correlation Coefficient from 0.45 to -1 , please recalculate the portfolio's expected return and stand deviation. 3) Please comment on the portfolio's risk after we change the Correlation from 0.45 to -1 . What is your observation (les than 50 words)