Answer:
portfolio's standard deviation = 6.18%
Explanation:
we must first determine the expected returns for each stock:
stock A = (0.15 x 31%) + (0.6 x 16%) + (0.2 x -3%) + (0.05 x -11%) = 13.1%
stock B = (0.15 x 41%) + (0.6 x 12%) + (0.2 x -6%) + (0.05 x -16%) = 11.35%
stock C = (0.15 x 21%) + (0.6 x 10%) + (0.2 x -4%) + (0.05 x -8%) = 7.95%
then we must determine the variance of each stock's return:
stock A = {[0.15 x (31 - 13.1)²] + [0.6 x (16 - 13.1)²] + [0.2 x (-3- 13.1)²] + [0.05 x (-11 - 13.1)²]} / 4 = (48.0615 + 5.046 + 51.842 + 29.0405) / 4 = 33.4975
stock B = {[0.15 x (41 - 11.35)²] + [0.6 x (12 - 11.35)²] + [0.2 x (-6- 11.35)²] + [0.05 x (-16 - 11.35)²]} / 4 = (131.868375 + 0.2535 + 60.2045 + 37.401125) / 4 = 57.4219
stock C = {[0.15 x (21 - 7.95)²] + [0.6 x (10 - 7.95)²] + [0.2 x (-4- 7.95)²] + [0.05 x (-8 - 7.95)²]} / 4 = (25.545375 + 2.5215 + 28.5605 + 12.720125) / 4 = 17.3369
portfolio's variance = (0.3 x 33.4975) + (0.4 x 57.4219) + (0.3 x 17.3369) = 38.21908
portfolio's standard deviation = √38.21908 = 6.18%
Answer: Malika's job starts in one month, so she will have one month without work. Therefore, the opportunity cost of moving herself is low during this month.
Explanation:
From the question, we are informed that Malika just got hired by Amazon to work in upper management and that she currently lives in South Carolina, and has to move to California for the job.
A good economic reason for her to move her personal belongings on her own rather than hiring someone else is Malika's job starts in one month, so she will have one month without work. Therefore, the opportunity cost of moving herself is low during this month.
Since her job will start in a month, that means that she can use the available time she has to move her personal belongings. Assuming, she has something else to do or she'll be busy and will be hard for her to move it on her own, then it'll be logical to request for someone to help her move it but in this case, she can move it herself as the opportunity cost is low.
When marginal revenue is equal to the marginal cost, then the firm should increase the level of production to maximize its profit.
Marginal revenue simply means the increase in revenue that a company makes as a result of selling an additional output of good. Marginal cost is the cost that a company incurs for production of one extra unit of good.
It should be noted that when the marginal cost if a firm is more than the marginal revenue, it means that the firm is producing too much.
When the marginal revenue of the firm equals the marginal cost, then the firm should maximize its profit.
The correct option is A.
Read related link on:
brainly.com/question/10822075
Answer:
Oct 1
DR Cash............................................................................$20,000
CR Common Stock.........................................................................$20,000
Oct 2. No entry required
Oct 3
DR Office Furniture .....................................................$2,300
CR Accounts Payable................................................................$2,300
Oct 6
DR Accounts Receivable.............................................$3,600
CR Service Revenue - Realty services...................................$3,600
Oct 27
DR Accounts Payable ..................................................$850
CR Cash .......................................................................................$850
Oct 30
DR Salaries Expense ....................................................$2,500
CR Cash ..........................................................................................$2,500
