7. Probability
Probability is quantified by the likelihood of events occurring, represented on a scale from 0 to 1. Key concepts include experiments, trials, outcomes, and their relationships, along with classical and simple event probabilities. Complementary events further underscore the inverse relationship of event probabilities.
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What we have learnt
- Probability measures the likelihood of an event, ranging from 0 (impossible) to 1 (certain).
- Each experiment produces outcomes, which can be quantified into events and sample spaces.
- Classical probability assumes equal likelihood of outcomes, allowing the calculation of event probabilities.
Key Concepts
- -- Probability
- A measure of how likely an event is to occur, varying between 0 (impossible) and 1 (certain).
- -- Sample Space
- The set of all possible outcomes of an experiment.
- -- Classical Probability
- Probability calculated under the assumption that all outcomes are equally likely.
- -- Simple Events
- Events that involve a single outcome from the sample space.
- -- Complementary Events
- Events that represent the opposite possibility of an event occurring, calculated as 1 minus the event's probability.
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