true or false

Variability in a security's total returns that is directly associated with overal movements in the general market or economy is called nondiversifiable risk.

The weights used in a portfolio are the percentages of total investable funds invested in each security

As the number of securities in a portfolio increases, the importance of the covariance relationships increases, while the importance of each individual security's risk decreases

Investors should not be concerned with the individual stock risk because individual stocks do not add any risk to the portfolio.

Individual security risk and return is more important to an investor than the overal risk and return of the investor's portfolio

Active strategies are related to the concept of efficient markets meaning that active portfolio managers can beat market averages or indexes better in an efficient market.