2. Sample Space and Events
Understanding sample spaces and events is essential in probability theory, particularly in applicability to engineering and applied sciences. Random experiments lead to uncertain outcomes, which are organized into sample spaces comprising all possible results. Events, as subsets of sample spaces, can take various forms such as simple, compound, or mutually exclusive. By applying set theory, one can manipulate events, which is crucial for solving probability-related problems in diverse fields.
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What we have learnt
- A random experiment has uncertain outcomes.
- The sample space (S) is the set of all possible outcomes.
- An event is any subset of the sample space.
- Events can be simple, compound, mutually exclusive, or complementary.
- Set theory helps us model and manipulate events.
- Understanding sample spaces and events is foundational for solving probability problems in engineering applications.
Key Concepts
- -- Random Experiment
- An action or process leading to one of several possible outcomes that cannot be predicted with certainty.
- -- Sample Space
- The set of all possible outcomes of a random experiment, denoted as S or Ω, which can be finite, countably infinite, or uncountably infinite.
- -- Event
- A subset of the sample space which can contain one or several outcomes.
- -- Venn Diagrams
- Visual tools used to represent events and sample spaces, aiding in the understanding of relationships such as union, intersection, and complement.
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