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If you roll one die with 6 sides what is the probability that you will roll a 3 or a 4?
Wiki User
∙ 14y ago
The answer is 1/3. There are six possible outcomes (1 to 6) of which two (3 or 4) are favourable so the probability is 2/6 or 1/3. In general, if A and B are two events, then Pr (A or B) = Pr(A) + Pr(B0 - Pr(A and B) [the last bit is because you are double counting those events] Here Pr(A) = Pr(3) = 1/6, Pr(B) = Pr(4) = 1/6 and Pr(A and B) = Pr(3 and 4 - simultaneously) = 0 So Pr(3 or 4) = 1/6 + 1/6 + 0 = 1/3
Wiki User
∙ 14y ago
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If you roll two die what is the probability that one die will roll a one and the second die will roll a two?
Assuming you are talking about fair, six-sided dice, then the probability of rolling a 1 on the first roll in 1/6, and the probability of rolling a 2 on the second roll is 1/6. Putting these together, the probability of rolling 1 on the first die and 2 on the second die is 1/36. If you do not care about the order, then you could roll 1,2 or 2,1; in this case the probability would be 2/36, or 1/18.
If you roll a die once what is the probabililty of rolling a 3?
There is one three on a dice, and there are six sides, so the probability of rolling a three is 1 out of 6 or about 16.6%.
If you roll two dice what is the probability of getting an odd number?
The probability of getting an odd number when you roll one die is 1 in 2. In order to get an odd sum with two dice, one of them has to be odd and one of them has to be even. The probability of rolling an odd sum is still 1 in 2, since each die is unrelated in probability to the other.
What is the probability of rolling a number greater than 3 on one roll if a die?
It is 0.5
What is the probability of rolling a 7 with one roll of a standard number cube?
The probability of rolling a seven with one roll of a standard number cube is zero.
If you roll a nine-sided die what is the probability you will roll a value greater than zero?
If zero is the number on one of the 9 sides, then the probability is 8/9 = 88.9% (rounded)If zero is not the number on any one of the 9 sides, then the probability is 100%.
What is the probability of getting a 7 on one roll of a die?
The probability of getting a 7 on one roll of a die is zero.If you meant to ask about two dice, the probability is 6 in 36, or 1 in 6.
What is the probability of rolling a five on one die times in a row?
Since there are 6 sides to the die, the probability of rolling a 5 on one roll is 1/6. Since each roll is an independent event the probability of the multiple results is the product of the probability of each result. So 2 consecutive 5's would occur with a probability of (1/6)(1/6) = 1/36
If you roll two die what is the probability that one die will roll a one and the second die will roll a two?
Assuming you are talking about fair, six-sided dice, then the probability of rolling a 1 on the first roll in 1/6, and the probability of rolling a 2 on the second roll is 1/6. Putting these together, the probability of rolling 1 on the first die and 2 on the second die is 1/36. If you do not care about the order, then you could roll 1,2 or 2,1; in this case the probability would be 2/36, or 1/18.
What is the probability of rolling a 4 on one roll of die?
one out of 6
What is the probability of rolling a 5 on a die with one roll?
One sixth
What is the probability of rolling a five on one die of three of three times in a row?
Since there are 6 sides to the die, the probability of rolling a 5 on one roll is 1/6. Since each roll is an independent event the probability of the multiple results is the product of the probability of each result. So 2 consecutive 5's would occur with a probability of (1/6)(1/6) = 1/36
What is the probability of rolling 7 with 2 dice?
1:6. It's easy to see why if you think about it a certain way... First, roll one die. Whatever number you roll, there is exactly one number you can roll on the other die to total seven. The odds that you'll roll that one other number is 1:6 (because the die has 6 sides).
If you roll a die once what is the probabililty of rolling a 3?
There is one three on a dice, and there are six sides, so the probability of rolling a three is 1 out of 6 or about 16.6%.
What is the probability of rolling a three on a single roll of a die?
One in 6.
What the probability of rolling a 4 on one roll of a die?
It is 1/6.
What is the probabilityof rolling a 2 on one roll of a die?
On a standard 6 sided die then the probability would be 1/6 if it is a 12 sided die then it would be 1/12 it varies by how man sides of the die there are.
