Find aobability
Assuming that the faces of the 20 sided die are numbered 1 to 20, then the probability of rolling a number less than 9 is 8 in 20, or 0.4.
With standard dice, zero.
It is 20/36 = 0.55... recurring.
The probability is 1/36.
With a single roll of a fair die, the probability is 1/3.
Find aobability
Assuming that the faces of the 20 sided die are numbered 1 to 20, then the probability of rolling a number less than 9 is 8 in 20, or 0.4.
It is 4/6 = 2/3
With standard dice, zero.
The factors of 20 on a die are: 1,2,4,5 Therefore it is a 4 out of 6 chance you will roll one of the factors. In simplest form, a 2 out of 3 chance or 66 2/3 chance.
The probability of rolling a 4 is 1/6.
There could be many questions: What is the probability of rolling an even number. What is the probability of rolling an odd number. What is the probability of rolling a number less than 4. What is the probability of rolling a number more than 3. What is the probability of rolling 1,4, or 6. Basically it could be any question about the probability of rolling half of the faces.
It is 20/36 = 0.55... recurring.
The probability of not rolling a 6 is 5/6.
The probability is 1/36.
It is 1/6