1. Portfolio risk is a weighted average of the individual security risks.

True/False

2. Investments in commodities such as precious metals may provide additional diversification opportunities for portfolios consisting primarily of stocks and bonds.

True/False

3. Throwing a dart at the WSJ and selecting stocks on this basis would be considered random diversification.

True/False

4. In the case of a four-security portfolio, there will be 8 covariances.

True/False