某人打靶命中率为0.8，若独立地射击5次，则5次中有2次射中的概率为（）a. b. c. - 查题网

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国家开放大学 / 数理统计

某人打靶命中率为0.8，若独立地射击5次，则5次中有2次射中的概率为（）

a.

b.

c.

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数理统计

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