Security A has a beta of 0.9 and a standard deviation of its error term of 8%. If the standard deviation of the market is 10%, the total variance for Security A is (a) 17.2. (b) 73.0. (c) 145.0. (d) 154.0. (e) 181.0.

Security Y has a total variance of 225. Its beta is 1.2 and the market variance is 100. The standard deviation of its random error term is (a) 6%. (b) 14%. (c) 3%. (d) 9%. (e) 11%.

When using the market model for portfolio development, the analyst assumes that the correlation between each security's random error is (a) 0.5. (b) 0.0. (c) -0.5. (d) -1.0. (e) 1.0.

Please provide detailed work as I want to understand this.

Anew japanese restaurant opens two blocks from your home. the owner, reiko, is a personal friend of yours. you don't particularly like japanese food, but you decide to go anyway; however, there is nothing on the menu that sounds appealing. unfortunately, it turns out that most of the people in your town don't like japanese cuisine either. reiko confides that business is not good, but she isn't sure what to do from an economic standpoint. which of the following would most likely describe adam smith's perspective on this problem? select one: a. reiko should ask the government for assistance. b. reiko should close the restaurant and find a different career. c. reiko should lay off workers and do everything herself to save money. d. reiko should add other foods to the menu and offer discounts to attract more people to her restaurant.