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Math Help - What's the difference between premutations, combinations, and. . .

  1. #1
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    What's the difference between premutations, combinations, and. . .

    fundamental counting principle word problems?

    Thanks!
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  2. #2
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    Re: What's the difference between premutations, combinations, and. . .

    Quote Originally Posted by Vanilla16 View Post
    fundamental counting principle word problems?
    Please expand upon this question.
    What exactly are you asking?
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  3. #3
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    Re: What's the difference between premutations, combinations, and. . .

    Oh, okay. . .

    Like. . .
    Juan has 6 shirts and 5 shorts. How many outfits can he make?

    And . . .
    How many different ways can Chloe, Brittany, Anna, Mark, and Laura stand in a row?


    Could I solve both by multiplying? They seem so alike! :?
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    Re: What's the difference between premutations, combinations, and. . .

    Quote Originally Posted by Vanilla16 View Post
    Juan has 6 shirts and 5 shorts. How many outfits can he make?

    And . . .
    How many different ways can Chloe, Brittany, Anna, Mark, and Laura stand in a row?
    Juan can make thirty different outfits. That is simply the use of the multiplication property. Six ways to choose a shirt times five ways to choose shorts.

    The second is 5!=5\cdot 4\cdot 3\cdot 2\cdot 1=120
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  5. #5
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    Re: What's the difference between premutations, combinations, and. . .

    Oh, but why can't I use the same formula? They're so. . . the same-ish! LOL!
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    Re: What's the difference between premutations, combinations, and. . .

    Quote Originally Posted by Vanilla16 View Post
    Oh, but why can't I use the same formula?
    It is the same formula.
    Five ways to start the line, four ways to choose the second in line, ect.
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  7. #7
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    Re: What's the difference between premutations, combinations, and. . .

    So I can multiply 5 by 5?
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