UA talk:Players Roll All the Dice

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[edit] Why 11?

Does anyone know why this rule adds 11 instead of, say 10? My group might implement this rule and we're curious about where 11 comes from. My only answer is Wizard's found something in there tests, but this topic of probability is beyond me.--windandfire 16:54, 30 July 2008 (MDT)

The average roll on a d20 is 10.5. On a .5, you usually round up. Hence, 11. --Daniel Draco 22:26, 30 July 2008 (MDT)

I would have thought the average on a d20 is 10. That's interesting, thanks.--windandfire 23:02, 30 July 2008 (MDT)

Actually, it's because you have a 50% chance of rolling a natural 1 through 10, and a 50% chance of rolling a natural 11 through 20. —Sledged (talk) 09:30, 31 July 2008 (MDT)

I'm surprised they didn't use the standard D&D convention of "always round down". --Aarnott 11:08, 31 July 2008 (MDT)