The probabilility is 1 in 6 or 0.167
The addition rule of probability states that the probability that one or the other will happen is the probability of one plus the probability of the other. This rule only applies to mutually exclusive events. For example, the probability that a dice roll will be a 3 is 1/6. The probability that the dice roll will be even is 1/2. These are mutually exclusive events as the dice cannot be both 3 and even. Thus the probability of the dice roll coming up either a 3, or even, is 1/2 + 1/6 = 2/3.
The probability that you roll a 3 or a 5 on one or both dice is 20/36 = 5/9
One.
You cannot roll "a dice" because it is one die, many dice. If you roll an ordinary, 6 faced die, the probability that it will land on 1 is 1/6.
one third
With one roll of three dice, the probability is 7/8.
It is 1/2
1 out of 6 times,or 16.67% probability.
The probability is 5/36.
The probability of rolling either a 6 or 4 on one roll of a dice is two thirds (one sixth plus one sixth because both four and six have a probability of one sixth.
It is 23/36.
In one roll the probability is 1/36.