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 Topic: rolling
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 Rolling a die repeatedly (you can't just add percentages) 2007-10-04 From Howard:If my son has a 16.66% chance of rolling a particular number on a dice, and he rolls for it 6 times, he knows (from experience) that his odds of getting at least 1 right are not 100% (16.66% +16.66%+16.66% etc). He asked me if there was an equation that would give him the correct percentage chance of success when trying X times for a Y% chance of something.Answered by Victoria West. Rolling a metal plate 2007-07-31 From k.a.suresh:How to calculate the plate size for rolling (2010mm OD)plate thick is 6mmAnswered by Harley Weston. Rolling Circles 1999-09-12 From Craig Ellis:We have a circle of radius 3. inside the circle and tangent to the circle of radius 3 at one point is a circleof radius 1. The question is if we could roll the smaller circle around the inside of the larger circle how many revolutions would it take to get around to where we started.Answered by Chris Fisher and Walter Whiteley.

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