alleryStart learning →The probability of A given that B has occurred is written:
AP(AxB)
BP(A-B)
CP(A|B)
DP(A+B)
Answer & Solution
Correct answer: C. P(A|B)
1. Conditional probability restricts attention to the outcomes where B happened.
2. The conditional probability of A given B is written P(A|B).
3. The count for A is then divided by the number of outcomes in B rather than in the whole sample space.
4. Understanding the wording is the first very important step in solving probability problems.
_Source: OpenStax Introductory Statistics 2e (CC BY 4.0), Ch 3 'Probability Topics', sections 3.1-3.5_
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