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PERMUTATIONS with RESTRICTIONS and REPETITIONS
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n!a!b!c!
Permutations with identical objects.
where n is a set of objects with
a one kindb anotherc another
etc.
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How many different 5digit numbers can be made arranging
4 6 1 6 4 30 ways
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How many different "words" can be made from theletters in the word MISSISSIPPI?
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How many permutations of 8 letters can be made from
P A R A L L E L
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How many different "words" can you make from the letters in the word STATISTICS?
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Camy, Yvanne, Mark, Arlyn, and Roger are sitting in the stands at a concert together.
a) How many ways can they be seated?
5! = 120 ways
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c) What if Arlyn and Roger must not sit together?
b) What if Arlyn and Roger must sit together?
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HOMEWORKEX.29; #19
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