Assume an investor formed a portfolio comprised of 30% in the common stock of AT&T, Inc., (T) and 70% in the common stock of Apple, Inc. (AAPL). Use the data provided below to calculate the portfolios monthly expected return, standard deviation, and coefficient of variation.

Spreadsheet estimates of average monthly return, standard deviation and covariance for each of these two stocks are as follows:

T AAPL

Average Monthly Return 2.28% 5.64%

Standard Deviation of Return 5.56% 12.01%

Covariance (T, AAPL) = -.0033

D. none of the above

B. 4.63%, 7.72%, 1.67

C. 3.39%, 4.49%, 1.33

A. 4.63%, 55.85%, 12.06