Need a statistic major's help here...
- Thread starter RigaMortus
- Start date
CRGreathouse
Community Supporter
Darkness said:You probably can make Excel do it, though.
Yep. Use CHIDIST(x,degrees_freedom).
Don't mean to get this started up again, but consider this...
Assuming rolling a 1 results in a "bad" effect when rolling a d4, you would have a 25% chance to roll the one on a d4, or a 1 in 4 chance. Which in turn means you have a 75% (or 3 in 4) chance of success.
Now, when rolling percentile dice (2d10), as long as any of the first numbers come up as 3 through 9 you will be "safe". That is 6 numbers out of 10 that is absolutely safe, or to round down a 3 in 5 chance.
So as you can see, you either have a 3 in 4 chance to be "safe" on a d4, or a 3 in 5 chance to be safe with percentile (2d10).
This doesn't take into account rolling two 0's or a 2 and then a 6 through 9 on the second die. Which would up the odds in favor of a "safe" roll on the percentiles.
Am I correct in these calculations or am I looking at it wrong?
Assuming rolling a 1 results in a "bad" effect when rolling a d4, you would have a 25% chance to roll the one on a d4, or a 1 in 4 chance. Which in turn means you have a 75% (or 3 in 4) chance of success.
Now, when rolling percentile dice (2d10), as long as any of the first numbers come up as 3 through 9 you will be "safe". That is 6 numbers out of 10 that is absolutely safe, or to round down a 3 in 5 chance.
So as you can see, you either have a 3 in 4 chance to be "safe" on a d4, or a 3 in 5 chance to be safe with percentile (2d10).
This doesn't take into account rolling two 0's or a 2 and then a 6 through 9 on the second die. Which would up the odds in favor of a "safe" roll on the percentiles.
Am I correct in these calculations or am I looking at it wrong?
MerakSpielman
First Post
But you're forgetting the theory of molecular compaction, which teaches us that if you tap a d20 (or any die) repeatedly on the table with your desired result face-up, you are more likely to roll that number because the molecules are more compact now on the bottom of that die, therefor heavier, and more likely to end up on the bottem when rolled again.
Last edited:
Speaks With Stone
First Post
Molecule compaction. Hmmm. At least it's more sanitary than pretending to blow on the dice while actually licking the side opposite your desired result.
I can't prove it, but I'm pretty sure I know a guy who believes in the lick and stick method of die rolling.
I can't prove it, but I'm pretty sure I know a guy who believes in the lick and stick method of die rolling.
Ridley's Cohort
First Post
I have another explanation...
Suppose you took your "d100" die, and renumbered all the numbers 1-25 as '1', 26-50 as '2', 51-75 as '3', 76-00 as '4', wouldn't that be the "same" as a d4?
Suppose you took your "d100" die, and renumbered all the numbers 1-25 as '1', 26-50 as '2', 51-75 as '3', 76-00 as '4', wouldn't that be the "same" as a d4?
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