3 articles trouvés pour ce sujet.
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Rolling a die repeatedly (you can't just add percentages) |
2007-10-04 |
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Howard pose la question :
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.
Victoria West lui répond. |
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Rolling a metal plate |
2007-07-31 |
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k.a.suresh pose la question :
How to calculate the plate size for rolling (2010mm OD)plate thick is 6mm
Harley Weston lui répond. |
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Rolling Circles |
1999-09-12 |
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Craig Ellis pose la question :
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.
Chris Fisher and Walter Whiteley lui répond. |
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