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Combinations and permutations whats the difference in english we use the word combination loosely without thinking if the order of things is important in other words . Sal introduces the basic idea of combinations so lets keep thinking about different ways to sit multiple people in the certain number of chairs. Ive always confused permutation and combination which ones which heres an easy way to remember permutation sounds complicated doesnt it and it is with permutations every little detail matters alice bob and charlie is different from charlie bob and alice insert . Simple probability lesson covering combinations which are arrangements of a certain number of items such that order does not matter. the first time youre exposed to permutations and combinations it takes a little bit to get your brain around it so i think it never hurts to do as many examples. Combinations are easy to work out and understand using the right method combinations differ from permutations in that with combinations order does not matte. The has rule which says that certain items must be included for the entry to be included example has 2abc means that an entry must have at least two of the letters a b and c the no rule which means that some items from the list must not occur together example no 2abc means that an
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I stumbled upon Playster 2 months ago. I've upgraded to a premium membership already. The platform now carries audiobooks from: Simon & Schuster, Macmillan, HarperCollins UK, Recorded Books, Tantor, and Highbridge. HarperCollins US titles are already in the library. Great service.
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