三个箱子,第一箱中有4个黑球1个白球,第二箱中有3个黑球3个白球,第三个箱中有3个黑球5个白球,现随机取一个箱子,再从这个箱中取出一个球,则取到白球的概率是( ).

答案查看网，轻松搜题/搜资源

【单选题】【消耗次数：1】

① 53/120

② 9/19

③ 67/120

④ 10/19

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