Question
The addition rule is used when finding...
P(A and B).
P(A|B).
P(A or B).
P(B|A).
P(A and B).
P(A|B).
P(A or B).
P(B|A).
Answers
GPT-4o mini
The addition rule in probability is used when finding \( P(A \text{ or } B) \). This rule is utilized to calculate the probability of either event A or event B occurring, and it is expressed as:
\[
P(A \text{ or } B) = P(A) + P(B) - P(A \text{ and } B)
\]
This accounts for the overlap that occurs when both events can happen simultaneously.
\[
P(A \text{ or } B) = P(A) + P(B) - P(A \text{ and } B)
\]
This accounts for the overlap that occurs when both events can happen simultaneously.