Some of the following statements are incorrect.Identify three of them and explain briefly why you think they are incorrect.

a) A "Bell-shaped curve" is sometimes normally distributed.

b) The unit for COVARIANCE is %.

c) Semi-strong efficient capital market allows investor to make abnormal profits.

d) Market risk premium is the excess return on a share portfolio over the risk free rate.

e) Total risk is the same as the unsystematic risk of a security.