Please answer yes or no to the following statements and briefly explain why (1) the tangent portfolio is the same as efficient portfolio; (2) Capital Market Line implies that an efficient portfolio with higher return have to bear more volatility (variance) under CAPM Assumption; (3) Security Market Line implies that a portfolio with higher return have to bear more volatility (variance) under CAPM assumptions; (4) consider a multivariate linear regression, Y=a+bX1+cX2+, if b=0, then it means X1 and Y are correlated; (5) current yield is fixed once the bond is issued; (6) yield to maturity means that you will have such return on average from the bond