Statistics › Section C · Probability › Topic C.1

Probability terminology

Probability turns "how likely?" into a number between 0 and 1. This topic sets up the vocabulary every later probability topic stands on: experiments, sample spaces, events, and the long-run meaning of chance.

In this topic

  • Putting a number on chance
  • Experiments, outcomes, sample spaces
  • Events
  • Equally likely outcomes
  • Theoretical versus experimental probability
  • The law of large numbers
  • AND, OR, complements, and "given"
  • Worked example: a jar of marbles
  • Worked example: two dice, 36 outcomes
  • Common mistakes to avoid
  • Key takeaways

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