Assuming fair dice,
each of the pair has an equal chance of landing on any of their six faces.
These events should occur independently, so there are 36 total possibilities of equal probability.
That is, each possibility has a probability 1/36.
An 8 can be made with the possibilities (2,6), (3,5), (4,4), (5,3), (6,2).
Any of these possibilities will work so we want the probability that any of them will occur.
This can be calculated by adding their probabilities since they are mutually exclusive events.
There are 5 of them, each with probability 1/36. So the probability of rolling an 8 is therefore
5/36
The probability of rolling a four on an eight sided octahedron is 1 in 8, or 0.125.
Assuming that the die is a regular 1 - 6 die, there is zero chance of you throwing an eight with a single six-sided die.
1/6 or 16.66.. %
There is always a 1 in 6 chance of rolling ANY number on a six-sided dice, as there are 6 numbers.
It is 5/18.
there is exactly a 50% chance.
The chance of rolling a certain number on a dice is 1/6, so the chance of rolling a 4 OR 5is 2/6. But if you have two dice you have the most chance of rolling a seven (6/36 or 1/6)
Assuming that there are an equal number of even and odd faces on the eight-sided die, then the probability of rolling an even number is simply 4 in 8, or 1 in 2, or 0.5.
The probability is 6/36 or 1/6
The probability is 0.
If you roll a pair of six sided number cubes the probability of rolling two numbers whose sum is 6 is 5/36 or 0.1389. There are 5 ways to get 6: 1,5 & 5,1 & 4,2 & 2,4 & 3,3. There are 36 outcomes for a roll of 2 dice.
One roll of one normal cube: the answer is 0.