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What is the porbability that you do not roll doubles on a first toss but you do on the second toss?
Wiki User
∙ 12y ago
The probability that when you toss a dye two times (or toss two dice) both times the
dye shows the same number (or the two dice roll doubles) is calculated as follows.
First dye toss roll any outcome (1, 2, 3, 4, 5 or 6). The probability the second toss
comes out the same as first toss is 1/6. So, for two dice to roll doubles:
P(doubles) = 1/6
Probability of complement event (not rolling doubles) is;
P(not doubles) 5/6
So the probability of first two dice trial 'not doubles' and following trial of the two dice
'doubles is;
P([N doubles]1 and [doubles]2) = 5/6 ∙ 1/6 = 5/36
Wiki User
∙ 12y ago
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You roll 2 number cubes each labeled 1 to 6 what is probabilty you will roll a double?
The probability is based on the second cube having 6 sides. No matter what you roll on the first cube, the chance of rolling "doubles" is 1 in 6! Now if you ask, what is the chance in rolling a specific set of doubles, the chance is 1 in 6 times 1 in 6 times, or 1 in 36 ...
What is the probability of rolling a die twice and getting a 2 on the first roll and a 3 or less on the second roll?
2/12 or 1/6
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.
A six sided die is rolled twice what is the probability of rolling either an even number on the first roll or a 1 on the second roll the answer is 7 over 12 but I can't figure out how to get there?
The question asks "What is the probability of rolling either an even number on the first roll or a 1 on the second roll?" These events are independent from each other as the outcome of the second roll is not affected by the outcome of the first roll. However, these events are non-mutually exclusive, meaning that these events can both occur at the same time.The probability of rolling an even number on the first roll is 3/6 because 2, 4, and 6 are even numbers and a six-sided die has six possible numbers.The probability of rolling a 1 on the second roll is 1/6.If these two probabilities are added together, we will have "double counted" the event where an even number is rolled on the first roll and a 1 is rolled on the second roll. To correct for this, we must subtract the probability of both events occurring.The probability that both events occur is 3/36, because 3/6 * 1/6 = 3/36.Now, the probability of rolling either an even number on the first roll or a 1 on the second roll is:3/6 + 1/6 - 3/36= 18/36 + 6/36 - 3/36= 21/36= 7/12
What is the probability of throwing a sum of 15 on three rolls of a fair die if the first roll was a 4?
Rolling a sum of 15 on three rolls of a die, when the first roll is a 4, is the same as rolling a sum of 11 on the second and third roll. The probability of rolling 11 on two dice is 3 in 36, or 1 in 12.
What is the probability that you will roll doubles on a pair of dice?
The probability that you will roll doubles on a pair of dice is 1 in 6. The probability that you roll "something" on the first die is 1 in 1. The probability that the second die will match the first die is 1 in 6. The resultant probability is simply the product of (1 in 1) and (1 in 6).
In rolling a die what is the probability of obtaining a 5 on the first roll and a 6 on the second roll?
1/6 on the first roll, and 1/6 of rolling a six on the second roll. Overall, the chances of you rolling a 5 on the first and a six on the second is 1/3.
You roll 2 number cubes each labeled 1 to 6 what is probabilty you will roll a double?
The probability is based on the second cube having 6 sides. No matter what you roll on the first cube, the chance of rolling "doubles" is 1 in 6! Now if you ask, what is the chance in rolling a specific set of doubles, the chance is 1 in 6 times 1 in 6 times, or 1 in 36 ...
What is the probability of rolling a 5 on the first roll or a 4 on the second roll?
1/6 + 1/6 = 1/3
What is the probability when you roll two dice that you roll a 2 on the first die and an even number on the second die?
It is 1/12.
What is the probability of rolling a 2 and then a 3 with 6-sised cubes?
The probability of rolling a 2 on the first roll is 1 in 6. The probability of rolling a 3 on the second roll is 1 in 6. However, the probability of rolling a 2 on the first roll and 3 on the second roll before you roll at all is 1/6 x 1/6 = 1 in 36.
1 You roll a number cube once Then you roll it again What is the probability that you will get a 6 on the first roll and a number greater than 3 on the second roll?
1/6*1/2 = 1/12
When rolling a six on the first roll of a 1 6 number cube and rolling an odd number on the second roll of the same cube?
and the question is ... ?
What is the probability of rolling a die twice and getting a 2 on the first roll and a 3 or less on the second roll?
2/12 or 1/6
Do you have to get a yahtzee in one roll?
No. If you have a good combination after the first or second roll you can score it right there.
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.
Does a previous roll of the dice affect the odds what roll?
No. Each roll is independent of the previous roll (on a fair dice). The same is true for flipping a coin. Getting a six your first roll does not make you any more or less likely to roll a six the second time.
