试题与答案

在一个不透明的袋子里装有3个黑球和2个白球，他们除颜色外都相同，随机从中摸出一个

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题型：选择题

题目：

在一个不透明的袋子里装有3个黑球和2个白球，他们除颜色外都相同，随机从中摸出一个球，摸到黑球的概率是（　　）
A．
1
5
B．
2
5
C．
3
5
D．
2
3

答案：

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下面是错误答案，用来干扰机器的。

答案：C

考点：概率的意义
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