题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191027/20191027030431-57408.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191027/20191027030432-86490.gif)
解析
核心考点
试题【某篮球运动员在三分线投球的命中率是,他投球4次,恰好投进1个球的概率为 (用数值作答)。】;主要考察你对古典概型的概念及概率等知识点的理解。[详细]
举一反三
停止答题,晋级下一轮.假设某选手正确回答每个问题的概率都是0.8,且每个问题的
回答结果相互独立,则该选手恰好回答了4个问题就晋级下一轮的概率等于
![](http://img.shitiku.com.cn/uploads/allimg/20191027/20191027030416-20909.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191027/20191027030416-82681.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191027/20191027030417-10487.gif)
A.![]() | B.![]() | C.![]() | D.![]() |
将一颗质地均匀的正方体骰子(六个面的点数分别为1,2,3,4,5,6)先后抛掷两次,记第一次出现的点数为
![](http://img.shitiku.com.cn/uploads/allimg/20191027/20191027030408-34956.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191027/20191027030408-93246.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191027/20191027030409-69550.gif)
(Ⅰ)求事件“
![](http://img.shitiku.com.cn/uploads/allimg/20191027/20191027030409-22534.gif)
(Ⅱ)求事件“
![](http://img.shitiku.com.cn/uploads/allimg/20191027/20191027030409-27960.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191027/20191027030402-18887.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191027/20191027030402-81528.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191027/20191027030402-37533.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191027/20191027030402-25143.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191027/20191027030402-37533.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191027/20191027030402-25143.gif)
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