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OpenStudy (j.f):
How many different ways can 2 of 8 dinner guests be seated at the table? 8P2= 8x7x6x5x4x3x2x1= 40320. Using the definition of Permutations would this be correct would this be correct?
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OpenStudy (noelgreco):
You left out the denominator of the permutation calculation. http://www.themathpage.com/aprecalc/permutations-combinations.htm#Pfactorial
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