21.3 The Theory of Optimum Currency Areas 1) What are the biggest advantages the U.S. has over the EU in terms of being an Optimum Currency Area? A) low mobility of labor, higher labor productivity, lower level of intra-regional trade B) high unionization of U.S. Labor force C) high mobility of labor force, more transfer payments between regions D) higher uniformity of […]
11) The government’s primary budget deficit (or surplus) is the difference between the A) non-interest expenditures and interest payments. B) interest payments and revenues. C) total budget deficit (or surplus) and debt-service payments. D) total budget deficit (or surplus) between one year and the next. E) total government expenditures and revenues. 12) The federal government’s “primary budget deficit” A) includes domestic borrowing but excludes […]
131.The following information was selected from Save Mart’s accounting records during 2014: Cash provided by operations $1,400,000 Long-term note payable issued to acquire land and building1,800,000 Common stock issued to retire preferred stock200,000 Proceeds from sale of long-term investment340,000 Cost of machinery purchased320,000 The machinery purchased required a 10% down payment with the balance due during 2015. How must is Save Mart’s […]
38.The newest of the “three Ks” for German women is _____. a.children b.kitchen c.career (page 199, moderate) d.church 39.The “guest worker” program in Germany _____. a.originated as a supposedly temporary solution to the shortage of men after World War II (page 199, moderate) b.failed to attract many workers until around 1990, due to Germany’s low wages and poor working conditions c.was expanded in 1992, […]
Figure 4-5 21) Refer to Figure 4-5. The figure above represents the market for pecans. Assume that this is a competitive market. If the price of pecans is $3, what changes in the market would result in an economically efficient output? A) The price would increase, the quantity supplied would decrease, and the quantity demanded would increase. B) The quantity supplied would […]
41) The quantity of money demanded is proportional to A) the inflation rate. B) real GDP. C) the price level. D) the real interest rate. E) the nominal interest rate. 42) The demand for money is A) positively related to the price level. B) positively related to the nominal interest rate. C) negatively related to the price level. D) negatively related to real GDP. […]
51) A decrease in people’s disposable income A) increases saving. B) increases consumption. C) decreases saving. D) increases saving and decrease consumption. E) increases investment demand. 52) As the economy enters an expansion so that people’s expected future incomes rise, there will be A) an increase in the supply of loanable funds. B) a leftward shift in the supply of loanable funds […]
21) The above table gives the government outlays and tax revenues from 2008 through 2012 for two countries. In 2011 country A had a ________ and country B had a ________. A) budget deficit; budget deficit B) balanced budge; budget surplus C) balanced budget; budget deficit D) budget surplus; budget surplus E) budget surplus; balanced budget 22) The above table gives the […]
98.If the contribution margin is greater than zero, A.the selling price of each product is less than the variable cost per unit. B.total variable costs are less than sales revenue. C.the company will be profitable. D.the fixed costs are greater than variable cost. 99.The incremental profit generated by the sale of one additional unit is equal to the A.contribution margin per unit. […]
21. The term “strategic business unit” is often used to describe a(n): A. investment center.B. revenue center.C. profit center.D. cost center. 22. Which of the following statements is true regarding a company’s segment margin? A. It is primarily used to make short-term decisions such as cost-volume-profit (CVP) analysis and special order decisions.B. It ignores all fixed costs.C. It is primarily a measure of long-term profitability.D. It should not be used to make decisions on […]
Artificial Intelligence
Exercise 1 :
Which of the following are correct?
a. False |= True.
b. True |= False.
c. (A ∧ B) |= (A ⇔ B).
d. A ⇔ B |= A ∨ B.
e. A ⇔ B |= ¬A ∨ B.
f. (A ∧ B) ⇒ C |= (A ⇒ C) ∨ (B ⇒ C).
g. (C ∨ (¬A ∧ ¬B)) ≡ ((A ⇒ C) ∧ (B ⇒ C)).
h. (A ∨ B) ∧ (¬C ∨ ¬D ∨ E) |= (A ∨ B).
i. (A ∨ B) ∧ (¬C ∨ ¬D ∨ E) |= (A ∨ B) ∧ (¬D ∨ E).
j. (A ∨ B) ∧ ¬(A ⇒ B) is satisfiable.
k. (A ⇔ B) ∧ (¬A ∨ B) is satisfiable.
l. (A ⇔ B) ⇔ C has the same number of models as (A ⇔ B) for any fixed set of proposition symbols that includes A, B, C.
Exercise 2 :
You have a number of trucks with which to deliver a set of packages. Each package starts at some location on a grid map, and has a destination somewhere else. Each truck is directly controlled by moving forward and turning. Construct a hierarchy of high-level actions for this problem. What knowledge about the solution does your hierarchy encode?
Exercise 3 : 25 Points
In your local nuclear power station, there is an alarm that senses when a temperature gauge exceeds a given threshold. The gauge measures the temperature of the core. Consider the Boolean variables A (alarm sounds), FA (alarm is faulty), and FG (gauge is faulty) and the multivalued nodes G (gauge reading) and T (actual core temperature).
a. Draw a Bayesian network for this domain, given that the gauge is more likely to fail when the core temperature gets too high.
b. Is your network a polytree? Why or why not?
c. Suppose there are just two possible actual and measured temperatures, normal and high; the probability that the gauge gives the correct temperature is x when it is working, but y when it is faulty. Give the conditional probability table associated with G.
d. Suppose the alarm works correctly unless it is faulty, in which case it never sounds. Give the conditional probability table associated with A.
e. Suppose the alarm and gauge are working and the alarm sounds. Calculate an expression for the probability that the temperature of the core is too high, in terms of the various conditional probabilities in the network.
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