9/8/2023 0 Comments Combination and permutation![]() ![]() ![]() The number of permutations of n objects taken r at a time is determined by the following formula: One could say that a permutation is an ordered combination. If the order doesn't matter then we have a combination, if the order do matter then we have a permutation. It doesn't matter in what order we add our ingredients but if we have a combination to our padlock that is 4-5-6 then the order is extremely important. A Waldorf salad is a mix of among other things celeriac, walnuts and lettuce. A point to remember, regarding these two concepts is that, for a given set of objects, permutation will always be higher than its combination.Before we discuss permutations we are going to have a look at what the words combination means and permutation. With the above discussion, it is clear that permutation and combination are different terms, which are used in mathematics, statistics, research and our day to day life. If the order is irrelevant, then the question is related to the combination, and the possible samples will be AB, BC and CA. Where, AB is different from BA, BC is different from CB and AC is different CA. If the order is significant, then the question is related to permutation, and possible samples will be, AB, BA, BC, CB, AC, CA. In this question, first of all, you need to understand, whether the question is related to permutation or combination and the only way to find this out is to check whether the order is important or not. Suppose, there is a situation where you have to find out the total number of possible samples of two out of three objects A, B, C.
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