|Total||Number of combinations||Probability|
What is the probability of rolling a 5 twice?
Assuming a fair die: The probability of getting a 5 in the first roll is 1/6. The probability of getting a 5 in the second roll is 1/6. These are independent events.
What is the probability of rolling a 5 and then rolling a second 5 on a pair of dice?
There is a 16 probability of getting a 2 on the first roll and a 16 probability of getting a 5 on the second roll.
What is the probability of rolling a 5 with a pair of dice?
If you don’t get a 5 on the first die (that’s a 5/6 chance) then the chances of getting a 5 on the second die are 1 in 6. So again, we have 5/6*1/6=5/36 chance.
What is the probability of rolling a 3 then a 5?
6 Sided Dice probability (worked example for two dice). Two (6-sided) dice roll probability table. Single die roll probability tables.
Two (6-sided) dice roll probability table.
What is the probability of rolling a 1 and then a 2?
because the probability of rolling a 1 is 1/6 and the probability of rolling a 2 is also 1/6. 1/6 + 1/6 = 2/6 = 1/3. Each elementary outcome (in terms of single face) has equal probability of 1/6, so two faces like 1 or 2 have a combined probability of 1/6 + 1/6 = 1/3 or 33.3% if you like that notation better.
How many combinations of 7 are there in craps?
The Point Numbers
The odds of a 7 coming up before a 4 is easy to calculate. You have six possible combinations totaling 7 versus three possible combinations totaling 4.
When rolling a die 100 times what is the probability of rolling a 6 exactly 20 times?
Assuming that each roll is independent, you have a 1/6 chance of rolling a 6. You want to find the probability of it rolling a 6 twenty times out of 100, so we have (1/6)^20. Here the order doesn’t matter so multiply this by (100/20). For eighty times, you will have (5/6)^80 chance in rolling a die that is not a 6.