The answer depends on what the "event" is. And since you have not bothered to share that crucial bit of information, I cannot provide a more useful answer.
The probability of rolling a particular face in a 12 sided die is 1 in 12, or about 0.0833.
The probability of rolling a four on an eight sided octahedron is 1 in 8, or 0.125.
Complementary events are events that are the complete opposite. The compliment of event A is everything that is not event A. For example, the complementary event of flipping heads on a coin would be flipping tails. The complementary event of rolling a 1 or a 2 on a six-sided die would be rolling a 3, 4, 5, or 6. (The probability of A compliment is equal to 1 minus the probability of A.)
-- There are (6 x 6) = 36 possible rolls for a fair pair of 6-sided dice.-- There are 6 ways to roll a sum of 7 :1 ... 62 ... 53 ... 44 ... 35 ... 26 ... 1-- So the probability is 6/36 = 1/6 = 162/3 % .-- The probability is the probability, not the 'theoretical' probability.
The probability of rolling a six on either (or both) die is 11/36.
1 out of 2
The probability is 6/36 or 1/6
The theoretical probability of rolling a 5 on a standard six sided die is one in six. It does not matter how many times you roll it, however, if you roll it 300 times, the theoretical probability is that you would roll a 5 fifty times.
Theoretical probability is the probability of something occurring when the math is done out on paper or 'in theory' such as the chance of rolling a six sided dice and getting a 2 is 1/6. Experimental probability is what actually occurs during an experiment trying to determine the probability of something. If a six sided dice is rolled ten times and the results are as follows 5,2,6,2,5,3,1,4,6,1 then the probability of rolling a 2 is 1/3. The law of large numbers states the more a probability experiment is preformed the closer to the theoretical probability the results will be.
The probability of rolling a particular face in a 12 sided die is 1 in 12, or about 0.0833.
If the die is rolled often enough, the event is a certainty - probability = 1. For a single roll, the probability is 1/2.
The probability of rolling an 8 is Zero.
The probability of rolling a four on an eight sided octahedron is 1 in 8, or 0.125.
Complementary events are events that are the complete opposite. The compliment of event A is everything that is not event A. For example, the complementary event of flipping heads on a coin would be flipping tails. The complementary event of rolling a 1 or a 2 on a six-sided die would be rolling a 3, 4, 5, or 6. (The probability of A compliment is equal to 1 minus the probability of A.)
assuming a single six sided die the probability of rolling a three is 1/6
-- There are (6 x 6) = 36 possible rolls for a fair pair of 6-sided dice.-- There are 6 ways to roll a sum of 7 :1 ... 62 ... 53 ... 44 ... 35 ... 26 ... 1-- So the probability is 6/36 = 1/6 = 162/3 % .-- The probability is the probability, not the 'theoretical' probability.
The probability of rolling a 3 or 4 with a 6 sided die is 2 over 6. Also known as one/third.