This math topic focuses on probability calculations involving combinations, expressed using the "n choose m" (nCm) notation and the operation of division. Specifically, it tests understanding and manipulation of expressions such as "1 over the product of two combinations" to compute probabilities. Different question scenarios require implementing combination formulas and simplifying the outcomes to match one of multiple choice answers provided. This collection of problems requires both conceptual understanding of permutations and combinations in probability and the ability to perform numerical calculation.
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What is the value of this probability expression?