**Get Certificate: Machine Learning with Artificial Intelligence**

**True or False. Every state has a degree of usefulness or utility.**

**True**- False

**_________ networks allow compact specification of joint probability distributions. Fill in the blank.**

**Answer: Bayesian**

**What does the first stage of graph plan and planning graph construction attempt to achieve? Choose two.**

**Reachability analysis on the given problem****Delimiting the search space**- Increasing the search space
- Computability analysis on the given problem

**Bayes’ rule requires the following: Choose two.**

- A bayesian network
**Two prior probabilities****A conditional probability**- A utility probability

**Probability provides a way of summarizing the ____________ that comes from laziness and ignorance. Fill in the blank.**

**Answer: Uncertainty**

**The probability of a disjunction is given as: Choose one.**

- P(A) + P(B) – P(A Λ B)
**P(A V B) = P(A) + P(B) – P(A Λ B)**- P(A V B) = P(A) + P(B)
- P(A V B) = P(A) – P(B)

**________ planner can solve Sussman anomaly. Fill in the blank.**

**Answer: interleaving**

**_______ theory provides ways and means of weighing the desirability of goals and the likelihood of achieving them. Fill in the blank.**

**Answer: utility**

**Plan spacing planning is also referred to as? Choose one.**

- Action planning
**Nonlinear planning**- Goal-stack planning
- Linear planning
- Choose one answer.

**True or False. Propositions can also include equalities involving random variables.**

**True**- False

**A planner that can represent plans in which some steps are ordered with respect to each other and other steps are unordered is called? Choose one.**

- Total order plan
- Graph plan
**Partial order plan**- Linearized plan

**A continuous random variable that takes an _______ number of distinct values. Fill in the blank.**

**Answer: Infinite**

**Casual chains give rise to? Choose one.**

- Affirmative dependence
**Conditional dependence**- Conditional independence
- Affirmative independence

**Which of the following is true of ABSTRIPS? Choose three.**

**It is a kind of hierarchical planner****It is very efficient in solving large problems****It greatly reduces search space**- It is used as a delimeter

**The set of all possible outcomes is referred to as? Choose one.**

- Utility space
**Sample space**- Probabilistic space
- Empty space

**___________ theory provides the basis for our treatment of systems that reason under uncertainty. Fill in the blank.**

**Answer: Probability**

**In planning a graph, a pair of mutually exclusive propositions in the same layer is linked through the _______ edge. Fill in the blank.**

**Answer: Mutex**

**Which of the following does not involve selecting an action whose pre conditions are met until a goal state is reached? Choose three.**

**Graph based planning****Plan space planning****Regression planning**- Progression planning

**Which of the following are included in the basics of probability theory? Choose three.**

- Utility rule
**Bayes’ rule****Acting under uncertainty****Rational decisions**

**Which of the following does not hold for situation calculus? Choose three.**

**Objects are universal****Successor state axioms specify truth values of fluent in the current state**- Situations and actions are explicitly taken to the objects in the domain
**They are the only ways to represent beliefs about a changing world**

**Which of the following theories constitute the decision theory? Choose two.**

**Probability theory**- Bayesian theory
- Combination theory
**Utility theory**

**First order logic used with complex domain like medical diagnosis fails for three main reasons: Choose three.**

**Practical ignorance**- Arrogance
**Laziness****Theoretical ignorance**

**All probabilities fall between: Choose one answer.**

- 100 and 1000
- 10 and 100
**0 and 1**- 1 and 10

**Probability provides a way of summarizing the uncertainty that arises from? Choose two.**

- Arrogance
**Laziness**- Poverty
**Ignorance**

**Bayes rule can be used to do do which of the following when conditioned on one piece of evidence? Choose one.**

**Answer probabilistic queries**- Solve queries
- Increase complexity of a query
- Decrease complexity of a query

**Planning and problem solving are different because of which of the following? Choose two.**

- Equality in the representation of goals, states, and actions
**Differences in the representation of goals, states, and actions****Differences in the representation and construction of action sequences**- Equality in the representation and construction of action sequences

**Which of the following statements are true about STRIPS? Choose three.**

**Actions are effectively instantaneous****Actions are not represented explicitly as part of the world model****Actions are thought of as operators that syntactically transform world models**- Actions are randomly instantaneous

**If every undirected path from a node in X to a node in Y is separated by E, then given E, X and Y are? Choose one.**

- Dependent
- Conditionally dependent
**Conditionally independent**- Independent

**__________ theory provides ways and means of weighing up the desirability of goals and the likelihood of achieving them. Fill in the blank.**

**Answer: utility**

**Which of the following is true of a probability model associated with a numerical probability with each possible world? Choose two.**

- Total probability of the set of all possible worlds is 100
**Total probability of the set of all possible worlds is 1**- Every possible world must have a probability between 0 and 100
**Every possible world must have a probability between 1 and 0**