Ai fundamentals reviewer 3 Flashcards
If the probability of event A occurring is 0.6 and the probability of event B occurring is 0.4, what is the probability of either event A or B occurring?
0.1
If there are 10 equally likely outcomes, what is the probability of any one of them occurring?
10%
In a binary cost matrix, what do the elements in the second row and first column represent?
The cost of predicting the positive class when the actual class is negative
In Dempster-Shafer theory, the “combination rule” is used to:
Combine the beliefs and plausibilities of multiple events
In Dempster-Shafer theory, the “conflict function” is defined as:
The level of disagreement about the likelihood of an event
If the probability of event A occurring is 0.6 and the probability of event B occurring is 0.4, what is the probability of neither event A nor B occurring?
1
If the probability of event A occurring is 0.5 and the probability of event B occurring is 0.5, what is the probability of event A occurring given that event B has already occurred?
0.5
In a binary cost matrix, how many rows and columns are there?
2 rows and 2 columns
In Dempster-Shafer theory, the “uncertainty function” is defined as:
The level of uncertainty about an event
In a binary cost matrix, what do the elements in the first row and first column represent?
The cost of predicting the negative class when the actual class is positive
In Dempster-Shafer theory, the “belief function” is defined as:
The degree of belief that an event will occur
If there are two events, each with a probability of 50%, what is the probability that at least one of them will occur?
75%
In Dempster-Shafer theory, the “conflict resolution rule” is used to:
Resolve conflicts between the beliefs and plausibilities of multiple events
If there are two events, each with a probability of 50%, what is the probability that both will occur?
25%
In Dempster-Shafer theory, the “plausibility function” is defined as:
The likelihood that an event will occur
