This math topic focuses on practicing probability using the combination formula, denoted as nCm, where n represents the total items, and m the number of items to choose. The problems require selecting the correct formula for choosing sets of items from a group, considering different values of n and m. It emphasizes understanding how to apply factorial calculations and combinations to determine the number of ways to select items disregarding order. Each question provides multiple formula options, including factorials and combinations, illustrating typical scenarios in probability and combinatorics.
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Select the correct formula for this description
With a group of 3 options how many ways are there to choose a set of 2 options regardless of order?