Please answer each of the following questions in detail and provide in-text citations in support of your argument. Include examples whenever applicable. Make sure to provide examples for each of the questions below.

1. Explain the criteria for assessing performance of a security, namely, expected rate of return, standard deviation of rate of return, and coefficient of variation (CV). Explain how by forming a portfolio an instrument can be generated that has properties better than each of its constituents in terms of the standard deviation of rate of return and CV.(In your words no copy).