permutation pop

Team: 
Permutations committee club!
Topic: Probability, Counting & Combinatorics
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there are 6 students and were trying to figure out how many groups we can make with only 2 or 3 people in each group.

Common Core Standards: 7.SP.8
Problem #: 
257 (2011-2012)
Problem Difficulty Level: 4 [?]