- #1

Agvantentua

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Basically, I attempt to roll 5 times, and I have 70% chance for the roll to even happen. When roll happens I have 1/14 chance of rolling the right result. So what I'm looking for is simply my chance of hitting correct roll at least once in these 5 tries.I was trying to calculate that using binomal probability, but I'm not sure if that's the correct way.