The probability is certain or 1. The max you can roll is 12 so it is certain the sum will be less than 13.
The probability is 1, if the dice are rolled often enough.
The probability is 1, if the dice are rolled often enough.
If rolling 1 die it is 1; if rolling 7 dice it is 0.
1:6
The probability is 1.
The probability is 1, if the dice are rolled often enough.
The probability is 1, if the dice are rolled often enough.
If rolling 1 die it is 1; if rolling 7 dice it is 0.
The answer depends on how many dice are in the SET of dice.
1:6
The probability is 1.
There are 36 permutations of two dice. Of these, 6 have a sum less than five, 1+1, 1+2, 1+3, 2+1, 2+2, and 3+1. The probability, then, of rolling a sum less than five on two dice is 6 in 36, or 1 in 6, or about 0.1667.
5 over 11
2/6
Assuming you're using 6-sided dice, The probability of rolling less than 4 on one die is 1/2. To roll 3 dice and get less than 4 on 2 (and only 2) of them is 3/8.
The only number less than 3 that you can get with two dice is 2. The probability of getting a 2 is 1/36.The only number less than 3 that you can get with two dice is 2. The probability of getting a 2 is 1/36.The only number less than 3 that you can get with two dice is 2. The probability of getting a 2 is 1/36.The only number less than 3 that you can get with two dice is 2. The probability of getting a 2 is 1/36.
4/6 or 2/3