从5双鞋子里取4只,求此4只鞋子中至少有两只配成一双的概率;下面取法错在哪:先从5双里取1双,其两只全部取出,然后在剩下8只鞋子中任取2只.
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/15 10:31:42
![从5双鞋子里取4只,求此4只鞋子中至少有两只配成一双的概率;下面取法错在哪:先从5双里取1双,其两只全部取出,然后在剩下8只鞋子中任取2只.](/uploads/image/z/7618983-15-3.jpg?t=%E4%BB%8E5%E5%8F%8C%E9%9E%8B%E5%AD%90%E9%87%8C%E5%8F%964%E5%8F%AA%2C%E6%B1%82%E6%AD%A44%E5%8F%AA%E9%9E%8B%E5%AD%90%E4%B8%AD%E8%87%B3%E5%B0%91%E6%9C%89%E4%B8%A4%E5%8F%AA%E9%85%8D%E6%88%90%E4%B8%80%E5%8F%8C%E7%9A%84%E6%A6%82%E7%8E%87%3B%E4%B8%8B%E9%9D%A2%E5%8F%96%E6%B3%95%E9%94%99%E5%9C%A8%E5%93%AA%EF%BC%9A%E5%85%88%E4%BB%8E5%E5%8F%8C%E9%87%8C%E5%8F%961%E5%8F%8C%2C%E5%85%B6%E4%B8%A4%E5%8F%AA%E5%85%A8%E9%83%A8%E5%8F%96%E5%87%BA%2C%E7%84%B6%E5%90%8E%E5%9C%A8%E5%89%A9%E4%B8%8B8%E5%8F%AA%E9%9E%8B%E5%AD%90%E4%B8%AD%E4%BB%BB%E5%8F%962%E5%8F%AA.)
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