试题与答案

从编号为1,2,3,4,5,6,7,8,9,10的十个形状大小相同的球中,任取3

题型:填空题

题目:

从编号为1,2,3,4,5,6,7,8,9,10的十个形状大小相同的球中,任取3个球,则这3个球编号之和为奇数的概率是________.

答案:

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