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A cube has its faces numbered from 1 to 6. The cube is weighted in such a way that when it is rolled, the probability that $$X$$ will appear on the top face is equal to $$\frac{k}{X}$$, where k is a constant. What is the value of $$k$$?
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· 相关考点
6.4.2 互斥事件与对立事件
6.4.2 互斥事件与对立事件
以上解析由 考满分老师提供。
