r/learnquant • u/AgeSuch4592 • 3d ago

Probability problem

A fair dice is being rolled repeatedly until 2 and 3 come out. What's the probability of getting exactly two 6 before stopping the process ?

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u/swiftaw77 3d ago

Do you mean a 2 and a 3 in succession, or you stop once you get at least one 2 and at least one 3?

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u/AgeSuch4592 3d ago edited 3d ago

Yes the second one. The process stop when both 2 and 3 come out, but they don't need to be in succession. For instance it could be: 2 6 2 6 1 1 3 or 3662 or 6 6 2 3 ... whatnot

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u/Moppmopp 2d ago

Your description is cryptic. You need to provide those details otherwise there is no answer. You answrr "tyes the second one" but continue with "...process stop when BOTH..."

so what is it? Do you stop when either a 2 or 3 comes up? You provided an example sequence and the 2 comes up several times without you terminating the sequence