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Math Help - Expressing events

  1. #1
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    Expressing events

    I am given three events; E, F and G.

    I need to express the following, in terms of their events and complements;

    - At least one of E, F and G

    How do i go about doing this? I seem to get a really long expression, but there must be a short way of going about it.
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  2. #2
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    Quote Originally Posted by Mcoolta View Post
    I am given three events; E, F and G.
    I need to express the following, in terms of their events and complements;
    - At least one of E, F and G
    The short way is \mathcal{P}(E\cup F\cup G)
    or 1-\mathcal{P}(E^c\cap F^c\cap G^c).
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