Mad Russian -> RE: Advanced Third Reich/ World at War (4/18/2009 12:46:51 AM)
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quote:
ORIGINAL: Mike Parker Well each d10 is 1 2 3 4 5 6 7 8 9 10 so there is no 0, but if it were labeled 0-9 you would be correct. Maybe where you live. In more than 35 years of wargaming I've never seen a 10 sided die have anythig but 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 on them. I've never seen the number 10 on a ten side die before. quote:
The MAIN difference is that a straight d100 (or percentile reading one die as tens and one as units) is a uniform distribution. I.e. there is as much probability of observing a roll of 100 as there is of observing 13. in 2d10 meaning take two ten sided dice roll them and add, you get a humped distribution. Its much less likely to see the low or high results and much more likely to see results centered on the mean (or expected value which for 2d10 is 11). quote:
So just to be clear, its NOT percentile, its a weighted distribution of probabilities. Yes, that's right. quote:
On easy way to see it is to form a 10x10 Matrix (yeah MATRIX!) and label the rows and columns 1-10 and fill in the entries by summing the row and column numbers. Then you will see a good graphical representation of the probabilities of generating any given result. It's relatively the same as two six sided dice added together. Only with 19 results instead of 11. Good Hunting. MR
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