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Math Help - how big should the selection size be?

  1. #1
    Junior Member
    Joined
    Jan 2012
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    Question how big should the selection size be?

    In a community there is 21% of women. How big should the selection size be,
    so that with a probability of 0,95, we could say there is at least one woman in the selection.

    Can you help me with this?
    Last edited by Kiiefers; April 13th 2013 at 04:13 PM.
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