Consider a portfolio that has two securities:
Sec. Amount invested Exp. Ret. Var./ Cov Matrix
A B
A $10,000 .05 A .08 -.02
B $35,000 .14 B -.02 .10
a) Calculate the portfolio expected return.
b) Calculate the standard deviation of the porfolio.
c) Assume you have $5000 additionally invested in Tbills. WHat is the expected return and standard deviation of you total portfolio?