I was thinking that there were 2 cases:
(1) $\\$ $X_{1}+X_{2}=6$, and the probability would be $\dfrac{5}{36}$.
(2) $\\$ $X_{1}=X_{2}=6$, and the probability would be $\dfrac{1}{36}$.
I am now stuck here, any hints or ideas would be great.
2026-04-01 13:01:07.1775048467
Roll two fair dice, what is the expected value of rolls such that the sum of the two faces is the multiple of 6.
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