刘刚每次投篮投进的概率为70%，那他投四次进三次的概率是多少？（）A.10.29% B.58.8% C.34.3% D.41.16%

作者: tihaiku 人气: - 评论: 0

问题刘刚每次投篮投进的概率为70%，那他投四次进三次的概率是多少？（）

选项 A.10.29% B.58.8% C.34.3% D.41.16%

答案 D

解析四次投篮中有三次进，一次不进，三次进有

种可能，投四次进三次的概率为

，故选 D。

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