Question: (a) How many different groups of size 2 can be selected from the items a, b, c? (b) How many different groups of size 2
(a) How many different groups of size 2 can be selected from the items a, b, c?
(b) How many different groups of size 2 can be chosen from a set of 6 people?
(c) How many different groups of size5can be chosen from a set of6people?
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