Question
How many groups can be formed from ten objects taking at least three at a time?
Step 1
This can be done using the formula for the number of subsets of a set with n elements, which is 2^n. In this case, n = 10, so there are 2^10 = 1024 possible subsets. However, this includes the empty set (no objects) and the sets with only one or two objects, Show more…
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