Which term refers to a collection of numbers where order does not matter and duplicates are not allowed?

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Multiple Choice

Which term refers to a collection of numbers where order does not matter and duplicates are not allowed?

Explanation:
A collection where order doesn’t matter and duplicates aren’t allowed is a set. Sets focus on which elements are present, not where they appear, so {2, 5, 7} is the same as {7, 2, 5}. If you had duplicates, like {2, 2, 5}, a set would treat it as {2, 5}. In contrast, a sequence or list cares about order and can include duplicates, and an array is an ordered, index-based collection that often allows duplicates. So the description clearly matches a set.

A collection where order doesn’t matter and duplicates aren’t allowed is a set. Sets focus on which elements are present, not where they appear, so {2, 5, 7} is the same as {7, 2, 5}. If you had duplicates, like {2, 2, 5}, a set would treat it as {2, 5}. In contrast, a sequence or list cares about order and can include duplicates, and an array is an ordered, index-based collection that often allows duplicates. So the description clearly matches a set.

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