2.99
See Answer

calculate the mean and standard deviation of the portfolio. The proportions invested in each stock are shown.

a. Chevron (CVX): 25%, du Pont (DD): 25%, Procter & Gamble (PG): 25%, Travelers (TRV): 25%

b. CVX: 50%, DD: 20%, PG: 15%, TRV: 15%

c. CVX: 10%, DD: 20%, PG: 30%, TRV: 40%

d. Explain why the choice of which portfolio to invest in is obvious.