Roll Succeeds 2d6 3d6
Systems
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Bell Curves1d6: How Often A Number Occurs
This table shows the chance to roll "less than" a certain number on 1d6. The notation "N-" indicates a die roll that is less than or equal to the specified number. (Example: a "3-" indicates a die-roll total of one, two or three). The Test column shows a die roll total. The Occurs column shows how many times a total shows up in the previous table. The Chances column shows how often a roll is equal to or less than this total. The Percent column shows the percentage chance of rolling a particular total or less. If you are trying to roll a total of 4 or less (4-) on 1d6, there are four possible totals that succeed: 1, 2, 3, 4. A total of 5 or 6 would fail the test. Each of the successful totals occurs once in the table (one 1, one 2, one 3, etc.) so the total number of results that would succeed in the test is four. Dividing the total number of possible successes (four) by the total possible results (six) is a 4/6 or a 66.7% chance for any single roll to be 4 or less. If you are trying to roll a total of 2 or less (2-) on 1d6, there are only two possible totals that succeed: 1 and 2. Any other total would fail the test. Each of the successful totals occurs once in the table (one 1 and one 2) so the total number of results that would succeed is two. Dividing the two successes by the six possible results is a 2/6 or a 33.3% chance for any roll to be 2 or less.
Copyright © 1999 Bob Simpson. All Rights Reserved. |
Last modified: 2005-Aug-14 15:15:29
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