Pick 3 items from 10 in any order, where n = 10, r = 3. The total number of ways of making the selection are
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Plugging these values into the formula, we get: C(10, 3) = 10! / (3!(10-3)!) = 10! / (3!7!) Now, let's calculate the factorial terms: 10! = 10 * 9 * 8 * 7 * 6 * 5 * 4 * 3 * 2 * 1 3! = 3 * 2 * 1 7! = 7 * 6 * 5 * 4 * 3 * 2 * 1 Now, we can substitute Show more…
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