Q: What is the probability of rolling a number less than 9 on a 20 sided die?

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The probability is 1.

1 out of 2

The probability of rolling a number on a die is 1 out of the number of sides on the die. So, for a six sided die, the probability of rolling a 4 is 1/6. The probability of rolling a 4 or a 5 becomes 2/6 or 1/3. This is because there are two acceptable outcomes out of six. So when finding the probability of rolling a number less than x on a y sided die, it becomes x-1 / y. It is x-1 because the outcome is to roll less than the number, not less than or equal.

2/6 which equals 1/3

There is a 4 in 6 (or 2 in 3) probability of rolling a number less than a five on a standard number cube.

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The probability of rolling a number less than 1 on a standard 6-sided die is zero. It will not happen.

The probability is 1.

2/3

1 out of 2

The probability of rolling a number on a die is 1 out of the number of sides on the die. So, for a six sided die, the probability of rolling a 4 is 1/6. The probability of rolling a 4 or a 5 becomes 2/6 or 1/3. This is because there are two acceptable outcomes out of six. So when finding the probability of rolling a number less than x on a y sided die, it becomes x-1 / y. It is x-1 because the outcome is to roll less than the number, not less than or equal.

Well, if you put them back after you take them out, then 3=1/6 7=1/6 and

3 out of 6, or 50%

2/6 which equals 1/3

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: 1 in 3

There is a 4 in 6 (or 2 in 3) probability of rolling a number less than a five on a standard number cube.

There are six possible outcomes of rolling a six sided die.However, only two of these (1 and 2) are favorable.So, the probability of rolling less than three is 2/6 = 1/3.