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(2002•鄂州)从A、B、C3人中选取2人当代表有A和B、A和C、B和C3种不...
(2002•鄂州)从A、B、C3人中选取2人当代表有A和B、A和C、B和C3种不同的选法,抽象成数学模型是:从3个元素中选取2个元素的组合,记作C
32=
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=3.一般地,从m个元素中选取n个元素的组合,记作
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.根据以上分析,从6人中选取4人当代表的不同选法有
种.
考点分析:
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