Randomness & Fairness

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Randomness and Fairness

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Random events

  • Random events are ones where the outcome is uncertain.
  • For example when a normal 6-sided dice is rolled the result could be 1, 2, 3, 4, 5 or 6.
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Fairness and bias

  • Fair means that each outcome is equally likely.
  • A dice is called fair if each of the numbers is equally likely to appear.
  • Similarly a coin is called fair if each face is equally likely to come up when the coin is tossed.
  • A coin or a dice that is not fair is called biased.

Jump to other topics


1.1Place Value

1.2Factors & Multiples


1.4Fractions, Decimals & Percentages

1.5Growth & Decay

1.6Measurements & Units



3Ratio, Proportion & Rates of Change

4Geometry & Measures



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