Not separate problems these are all under one question

The expected return of a stock is 1 Point the return that the stock will have next year. based on the probabilities of possible outcomes. none of the above the most likely return the stock will have next year. Portfolio returns depend on 1 Point the amount of money invested in each stock in the portfolio. the total amount of money invested in the portfolio the expected return of each stock in the portfolio all of the above. If I flip a coin 50 times and heads come up 29 times 1 Point the unexpected number of heads is -4. the exptected number of heads is 4. the realized number of heads is 25. the unexpected number of heads is 4. Unsystematic risk is also known as 1 Point unique risk. asset-specific risk. diversifiable risk. all of the above If a company announces record high earnings the stock price will 1 Point go up. go down stay the same. could go up go down or stay the same. Expected returns are calculated by 1 Point using only the return over the last year. finding the midpoint between the lowest possible return and the highest possible return. taking an arithmetic average fo the the possible returns. taking the probability that a return happens, multiplying by the return and then adding up across all possible returns