Suppose that we record the order of all 100 athletes. (a) How many different outcomes can we have then? (b) How many of these give the same result for the first 10 places? (c) Show that the result above for the number of possible outcomes for the first 10 places can be also obtained using (a) and (b).

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Counting Principles

In statistics, the counting principle can be said to be the concept in which the quantity of an item is determined. There can be a single item, or a group of items, or items that are related to each other. In every possible set of items, the quantity of the possible item groups or their sorting measures can be determined with counting principles.