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Question : 51.Which of the following eye diseases would be most likely : 1245495

Psychology

51.Which of the following eye diseases would be most likely to impair the ability of light to reach the back of the eye?

a.retinitis pigmentosac.cataracts

b.macular degenerationd.glaucoma

52.Chelsea is an older woman who has been having some difficulty with her hearing lately. If she is experiencing the normal age-related changes in her hearing that you’d expect, which of the following would she have the MOST difficulty hearing?

a.A young girl’s high-pitched voice.

b.The thunder of a raucous rainstorm.

c.The loud siren of a fire truck passing by her house.

d.Her husband’s deep voice over the breakfast table.

53.Presbycusis is the most common age-related

a.form of dementia.c.visual disorder.

b.variety of COPD.d.type of hearing problem.

54.Nancy and Joel are concerned about Joel’s aging father, who lives alone. They are worried that he will fall and severely injure himself, and will be unable to call for help. There are several steps they can take to reduce the chances of this happening. Which of the following would NOT be a suggestion you’d make to them in this situation?

a.Encourage Joel’s father to stay active and fit.

b.Move Joel’s father in with them so that they can keep an eye on him at all times.

c.Ensure that there is sufficient light in all walking areas of Joel’s father’s home.

d.Make sure there are no loose rugs or carpets in Joel’s father’s home.

55.Myna’s grandchildren have recently insisted on installing grab bars in her bathroom shower. They are probably worried about Myna

a.getting hurt when she falls down.c.having difficulty with bowel control.

b.remembering to bathe.d.having difficulty with urinary control.

56.Which of the following is NOT one of the sleeping trends that are seen in older adults when compared to younger adults?

a.They experience more nightmares in the average month.

b.It takes roughly twice as long to fall asleep.

c.They get less sleep in the average night.

d.They feel more negative effects after a night of poor sleep.

57.One of the reasons that a poor night (or several poor nights!) of sleep can cause such problems in a person’s life is that it disrupts their ________ rhythm.

a.circadianc.neuritic

b.programmedd.diurnal

58.The most important factor that is related to surviving cancer for older adults is

a.the use of radiation-based treatments.

b.aggressive chemotherapy.

c.early detection.

d.the ability to tolerate carcinotoxic medications.

59.Research on the relationship between immigration, ethnicity, and health status of older adults has shown that

a.immigration status has no impact on physical or mental health.

b.immigrants tend to have better health than US-born individuals of the same ethnicity.

c.immigrants tend to have poorer health than US-born individuals of the same ethnicity.

d.immigration status has a negative impact on physical health but not on mental health.

60.The most common approach to understanding how people process information involves the use of a ________neuroimaging technique, such as functional MRI.

a.task-relatedc.dynamic contract

b.structurald.lucid on-demand

 

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July 1, 2023
    

  

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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July 1, 2023
    

  

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.

default image
July 1, 2023
    

  

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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