Please help me with these questions, thank you so much

QUESTION 11 Suppose you invest $7,000 in StockAand $3,000 in Stock B. The variance of Stock A is 50 percent, the variance of Stock Bis also 50 percent, and the covariance between the two stocks is 0 percent. What is the variance of your portfolio in percent? QUESTION 12 The portfolio that lies on the efficient frontier that also has the least amount of risk is called: 0 the equaliweight portfolio. 0 the minimum variance portfolio. 0 the market portfolio. 0 the maximum Sharpe ratio portfolio. You are an active portfolio manager for a large hedge fund. The overall return on your portfolio for the year is 35 percent. What is your fund's alpha if the the risk-free rate is 5 percent, the Beta for you portfolio is 1.50 and the market risk premium is 10 pertent? QUESTION 14 Consider the price paths ofthe following stocks overa six-month period: \"mmmm _Ia-mIE-IE_IE- None ofthese stocks pay dividends. Assume that you are an investor with the disposition effect and you bought each ofthese stocks in January. Suppose that it is currently the end ofjune, which stocks are you most inclined to hold? i.Taggart Transcontinental 2. Rearden Metal 3. Wyatt Oil 4. Nielson Motors (3 4only O 2 and 4 only 0 'l and 3 only 0 1 only QUESTION 15 What range of values can the correlation coefficient take? 0 zero to +1 @ -1 to M O -innityto +innity 0 zero to +innity QUESTION 16 Considertwo stocks X and Vwith tne following expected returns (in percent) and standard deviations. How mucn ofyour $10,000 total investment should you invest in stock Y ifyou would like a portfolio with an expected return of'iB percent? Stock Expected return Standard deviation X 10 25 V 20 50 Average excess return (96) 12 10 Portfolio 'A" 3 0 Portfolio '3" O 6 K 4 POMOHO '0' Market Portfolio 2 (Portfolio "D" 1 2 Beta Portfolio \"A": O is overpriced. O has a relatively lower expected return than predicted. 0 falls below the SML. has a positive alpha. QUESTION 18 Which of the following is NOT true regarding individual investor behavior? 0 Individual investors fail to diversify their portfolios adequately. 0 Individual investors' portfolios consistently outperform the market averages. O A vast majority of individual investors hold fewer than 'IO stocks in their portfolio. 0 Employees tend to overinvest in their company's own stock. QUESTION 19 An individual's desire for intense risktaking experiences is known as: O herd seeking. @ sensation seeking. O phenomenon seeking. O rational expectations seeking. Assume thatthe CAPM is a good description of stock returns. The market expected return is 8 percent and the risk-free rate is 3 percent. New news arrives that does not change any ofthese numbers, but it does change the expected returns of the following stocks: which of the following stocks represent buying opportunities? 'I . Taggart Transcontinental 2. Rearden Metal 3. Wyatt Oil 4. Nieison Motors 0 'i and 2 only 0 2 and 3 only 0 'i only 2 and 4 only