文章以古典概型中“配对”问题的概率为例，采用一题多解的形式，给出了基本事件数的计算公式。
With pairing problems in classical probability as the example and through the forms of several solutions to one problem, the calculating formulas for basic events are presented.
文章以古典概型中“配对”问题的概率为例，采用一题多解的形式，给出了基本事件数的计算公式。
With pairing problems in classical probability as the example and through the forms of several solutions to one problem, the calculating formulas for basic events are presented.
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