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combination formula explained. Picking a team of 3 people from a group of 10. The combination formula is used to find the number of ways of selecting items from a collection such that the order of selection does not matter.
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Combinations with Repetition c c c 3 scoops of chocolate b l v one each of banana lemon and vanilla b v v one of banana two of vanilla. Furthermore the order in which the objects are chosen does not matter. The internal order of the items does not matter.
To form a valid set any object can be chosen only once.
Number of combinations with repetition and all possible selections. N - r where n represents the total number of items and r represents the number of items being chosen at a time. 3 10 9 8 3 2 1 120. To form a valid set any object can be chosen only once.
