document.write( "Question 746985: Determine wheter each situation involes a permutation or a combination
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\n" ); document.write( "arrrange of 15 DVD's on a shelf
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Algebra.Com's Answer #454661 by mikeebsc(26)\"\" \"About 
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Yes, this is the ONLY differentiating factor between a permutation and a combination; that is , does order matter? \r
\n" ); document.write( "\n" ); document.write( "In a permutation, order matters.\r
\n" ); document.write( "\n" ); document.write( "In a combination, order does not matter.\r
\n" ); document.write( "\n" ); document.write( "Being that the problem says \"arranging\", this leads one to assume order matters, hence a permutation. If the problem had read \"Place 15 DVD's on a shelf\", order would not matter, therefore it would have been a combination.
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