The expected return of Cullumber is 15.5 percent, and the expected return of Riverbed is 23.5 percent. Their standard deviations are 10.5 percent and 23.5 percent, respectively, and the correlation coefficient between them is zero.

What is the expected return and standard deviation of a portfolio composed of 20 percent Cullumber and 80 percent Riverbed? (Round intermediate calculations to 6 decimal places, e.g. 31.212564 and final answers to 2 decimal places, e.g. 15.25%.)

The expected return		%
Standard deviation of portfolio		%

What is the expected return and standard deviation of a portfolio composed of 80 percent Cullumber and 20 percent Riverbed? (Round intermediate calculations to 6 decimal places, e.g. 31.212564 and final answers to 2 decimal places, e.g. 15.25%.)

The expected return		%
Standard deviation of portfolio		%

Would a risk-averse investor hold a portfolio made up of 100 percent of Cullumber?