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What is the probability of rolling a seven with two dice given that at least one of them is a four?
Wiki User
∙ 11y ago
If one die is constrained to be a 4, then the probabilities rest with the other die. A 7 in total, then, means that the other die is a 3 or higher. The probability of a three or higher is 4 in 6, or 2 in 3.
Wiki User
∙ 11y ago
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What is the probability of rolling a seven on a pair of six-sided number cubes?
1/6 or 16.66.. %
What is the probability of rolling a seven on one roll of a die?
impossible. there are only 6 numbers on a die.
What is the probability of rolling less than seven when you roll 2 dice?
15/36 = 5/12
What operation is used when calculating the probability that 2 events will happen and Find the theoretical probability of rolling a total of 7 as a sum of two dices?
If the two events are unrelated, as they are in rolling two dice or one die twice, simply multiply the probabilities together. However, you also have to consider the permutations involved in rolling dice and realize that there is more than one way to roll a particular sum. There are 36 permutations of rolling two dice. Of these, exactly one has a sum of two, the the probability of rolling a sum of two is 1 in 36, or about 0.02778. You simply multiply 1 in 6 by 1 in 6, getting 1 in 36. In the case of rolling a sum of seven, there are exactly six permutations, 1+6, 2+5, 3+4, 4+3, 5+2, and 6+1, so the probability of rolling a sum of seven is 6 in 36, or 1 in 6, or about 0.1667. Another example is rolling pairs, such as two's or three's. The probability of rolling "something" on one die is 1 in 1, while the probability of matching it on the second die is 1 in 6, so you multiply (1 in 1) by (1 in 6) to get a probability of rolling a pair of 1 in 6, or about 0.1667. More useful towards understanding this concept is a deck of 52 cards. The probability of drawing an Ace is 4 in 52, or 1 in 13, or about 0.07692. The probability of drawing two Ace's is (4 in 52) times (3 in 51), or 12 in 2652, or 1 in 221, or about 0.004525. In this case, the two events are related, because the occurrence of the first event affects the probability of the second event, so you need to consider the calculation carefully.
What is the probability with a single die to roll less than seven?
Pretty good. A single die has six sides and they are normally numbered 1 to 6. Since all values are under 7, their is a 100 percent probability of rolling less than 7.
What is the probability of rolling a seven on a dice?
0% probability
What is the probability of rolling a seven with three dice?
5/216
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.
What is the probability of not rolling a seven?
That depends on how many dice you use. For example, if you use a single die, the probability is 100%.
Suppose you roll two die Find the probability of rolling a seven?
1/6
What are the chances of rolling a 6. 7 times in row?
The probability of rolling one 6 is ( 1/6 ).The probability of rolling seven 6's is ( 1/6 )7 = 3.572 x 10-6 = 0.0003572 percent
What is the probability of rolling a seven on a pair of six-sided number cubes?
1/6 or 16.66.. %
What is the probability of rolling a seven on one roll of a die?
impossible. there are only 6 numbers on a die.
What is the expected value of rolling two dice?
The most probable result of rolling two dice is a sum of seven. The probability of rolling a seven is 1 in 6 or about 0.167.All of the other possible sums have decreasing probability, all the way down to 1 in 36 or about 0.0278 for a sum of two or a sum of 12.
What is the probability of rolling a seven in any combination on a pair of dice?
6/36 which is equal to 1/6
What is the probability of rolling less than seven when you roll 2 dice?
15/36 = 5/12
When rolling a pair of fair dice what is the probability that the sum of the dice on one roll will be seven?
It is 6/36 = 1/6.
