# Are d100 dice worth it?

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A d100 takes away the guesswork and makes the entire process more streamlined. You’ll just need to roll the die and then continue on playing through your campaign.

## Are d100 dice fair?

They are not fair, they cannot be made fair, and they do not produce the same probabilities as rolling 2d10. A d10 is a pentagonal trapezohedron, which is a symmetrical fair die. Even an imperfect d10 is far more fair than a d100 can be, due to the limits of design.

## What is the average roll of a d100?

Each number, 1-100, only has a single way of coming up when you roll two dice for a d100 roll, so each number has an equal chance of coming up. So for average (at least the way that D&D calculates dice average) is to divide the maximum value of the dice plus one. So the average of a d100 roll is 51.

## Why does a d10 have a 0?

The one with two digits is just telling you the tens digit, and the one with one digit is the ones digit. If you’re rolling only that die with 0, 10, 20, etc., then a 10 = a 1 and the 00 = a 10. 0 or 00 on a d10 just means the highest number.

## What is the average roll of 1d8?

The average dice roll of 1d8 + 3d6 is 15. This can be done with any combination of dice imaginable.

## Is 2d6 better than 1d8?

A tiny 1d8 weapon does 1d6 damage, but a tiny 2d8 damage does 1d10 damage rather than 2d6. Likewise, a large 1d8 weapon does 2d6 damage but a large 2d8 damage does 3d8, rather than 4d6 damage.

## What is the average roll of 2d4?

The average for 2d4 is 2+82=5 2 + 8 2 = 5 and the average for 3d4 is 3+122=7.5 3 + 12 2 = 7.5 . It works for any distribution that is symmetrical around its average.

## What is unfair dice?

1.1 An Unfair Dice

In the example below, we will throw an unfair dice, where the probability of landing on the side with 1 is 60 percent, and the chance of landing on each successive side is 60 percent of the chance of landing on the previous side. This is a dice weighted towards the smaller numbers.

## How do you know if a dice is fair?

The ol’ golf ball test

Place the die in the water, note which side of the die faces upwards, and then give it a flick. For reasonably balanced dice, you should see a good variety of numbers facing upwards. For badly balanced dice, you’ll probably see the same one or two faces regularly. Throw those bad dice out.

## How do you know if a dice is biased?

A biased dice has a higher chance of rolling one result over the other. For example, you can make the side with the 1 lighter, making you more likely to throw a 1 over any other number. Or make one side sticky, so the chance that it is at the bottom is higher. Or even, deforming it so one side is smaller, or bigger.

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