A stock's returns have the following distribution: Calculate the stock's expected return. Calculate the stock's standard deviation. Do not round intermediate calculations. Calculate the stock's coefficient of variation. An individual has $45,000 invested in a stock with a beta of 0.3 and another $80,000 invested in a stock with a beta of 2.4. If these are the only two investments in her portfolio, what is her portfolio's beta? Required rate of return Assume that the risk-free rate is 3% and the required return on the market is 9%. What is the required rate of return on a stock with a beta of 1.2