+**4c2** represents 'four choose two,' a fundamental concept in [combinatorics](/wiki/Combinatorics). It denotes the number of distinct ways to select two items from a set of four, a value of six. This expression is key to understanding [probability](/wiki/Probability).
+## See also
+- [Combination](/wiki/Combination)
+- [Permutation](/wiki/Permutation)
+- [Factorial](/wiki/Factorial)
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