Which of the following is a characteristic of a public good? A. exclusion of paying consumers is feasible B. no individual can be excluded from the benefits of consuming it C. it cannot be consumed by many people simultaneously D. one person's consumption of such a good reduces the amount available for another person to consume

Suppose you hold a portfolio consisting of a $10,000 investment in each of 8 different common stocks. the portfolio's beta is 1.25. now suppose you decided to sell one of your stocks that has a beta of 1.00 and to use the proceeds to buy a replacement stock with a beta of 1.55. what would the portfolio's new beta be? do not round your intermediate calculations.