alleryStart learning →The complement of event A is written as:
AA prime
BA double
CA inverse
DA squared
Answer & Solution
Correct answer: A. A prime
1. The complement is everything in the sample space that is not in the event.
2. The complement of event A is denoted A prime.
3. The probability of A and the probability of A prime always add to one.
4. Together the event and its complement cover the whole sample space.
_Source: OpenStax Introductory Statistics 2e (CC BY 4.0), Ch 3 'Probability Topics', sections 3.1-3.5_
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