We explain how the determine how many arrangements of 3 people we can make from a population of 20 if the order of the people matters (a permutation) and if the order does not matter (a combination). Hopefully, this will clarify how the operations nPr and nCr actually work. #probability #precalculus #permutationsandcombinations #permutation #math
Негізгі бет Permutations (nPr) and Combinations (nCr): An Example
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