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    Yvan's Avatar
    Yvan Posts: 2, Reputation: 1
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    #1

    Jan 10, 2009, 01:32 PM
    counting & probability
    Sam rolls 3 dice one at a time and places them in a row. How many outcomes in which all three dice have different numbers are possible?
    Yvan's Avatar
    Yvan Posts: 2, Reputation: 1
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    #2

    Jan 10, 2009, 01:33 PM

    Sam rolls 3 dice one at a time and places them in a row. How many outcomes in which
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
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    #3

    Jan 10, 2009, 02:57 PM
    He rolls the first die, so there are 6 possibilities.

    The next die can not be the same, so there are 5 possibilities.

    And so on.
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