抛两颗均匀骰子，若已知两骰子出现的点数和为5，则其中有一颗骰子出现的点数是3的概率为（）

>> 成人高等教育 / 概率论与数理统计B

成人高等教育 / 概率论与数理统计B

正确率：100%

A、
（A）1/9
B、
（B）1/2
C、
（C）1/18
D、
（D）1/4

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概率论与数理统计B

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高等数学2

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