# An explanation of combinations with examples.

Explain combinations, please.

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#### Solution Preview

Combinations: the number of subsets that can be formed from a given number of elements.

An example question: If the police have 7 suspects, how many different ways can they select 5 for a lineup?

In this case, you want to find the number of subsets of 5 elements [the 5 suspects for each ...

#### Solution Summary

Combinations are explained. An explanation of combinations with examples are provided.

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