(3). The expected return and standard deviation of four assets are provided below:

Asset Expected return Standard deviation

A 6% 0%

B 15% 25%

C 20% 40%

D 32% 55%

For each of the following portfolios, compute the expected return and the standard deviation:

(a) Asset A has a portfolio weight of 25%, and asset B has a portfolio weight of 75%.

(b) You invest $2,000 in Asset A and invest $9,000 in Asset C.

(c) You have a total of $1,000 to invest. You short $200 worth of Asset A, and buy $1,200 worth of Asset D.

(d) You have a total of $1,000 to invest. You short $200 worth of Asset D, and buy $1,200 worth of Asset A.