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possible combinations formula. Two sequences define the same multiset if one can be obtained from the other by permuting the termsIn other words it is a sample of k elements from a set of n elements allowing for duplicates ie. Number is the number of items.
Formula for Combinations of n Distinct Objects. The number of permutations is equal to n n-k. Finally A few points to note on the COMBIN Function.
COMBIN Function calculates the highest number of combinations available based upon a fixed number of items.
The formula for combination with repetition is as follows. Displaystyle r r objects from the set is. N - r where n represents the total number of items and r represents the number of items being chosen at a time. N-1 and for permutation with repetition.