Complementary Probability
Probability inherits complementary counting: an event and its complement exhaust the sample space, so their probabilities add to 1.
What you'll learn
- Identify the exact complement of an event and verify that the two events cover the sample space without overlap.
- Calculate a probability by subtracting the probability of its complement from 1.
- Use complementary probability to solve at-least-one and other awkward event conditions.
Before you start
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