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how do u find probability?

  • math -

    By looking under random rocks?

    Seriously, probabality is the ratio of the number of possible successes divided by the number of total possibilities.

    At a dance, there are 13 boys, and 3 girls.

    The probability of a male female couple is
    3/16 * 13/15 Notice in each instance of fraction, it is the number of successes available divided by the number total. In the second fraction, the number total has decreased one, because a girl is removed.

    There are are many ways to "do" probabllity, depending on what is given.


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