Mutual exclusivity and independence

Mutual exclusivity and independence

Secondary 3
3 marks
TGM Original Questions

A fair six-sided die is rolled once. Event \(E\) is an even score and event \(O\) is an odd score.

  1. Explain why \(E\) and \(O\) are mutually exclusive.[1]
  2. Are \(E\) and \(O\) independent? Explain using what knowing that \(E\) has occurred tells you about \(O\).[2]

Solution:

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Answer:(a) One score cannot be both even and odd. (b) No; knowing \(E\) occurred makes \(O\) impossible.

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