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Enumerating sample spaces and calculating probabilities

Probability • Probability

Key concepts

What you'll likely be quizzed about

  • A sample space is the set of all possible outcomes of a probabilistic experiment.
  • It defines what can happen when a certain situation is evaluated.
  • For example, when flipping a coin, the sample space consists of two outcomes: heads or tails.

Flashcards

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How is probability calculated?

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Probability is the number of favorable outcomes divided by the total number of outcomes in the sample space.

Key notes

Important points to keep in mind

Remember to identify all possible outcomes in a sample space.

Always simplify probabilities to their lowest terms.

Check for independence when calculating probabilities of multiple events.

Use tree diagrams for complex sample spaces.

Perform probability calculations using clear fractions.

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