###### Asked in Probability

Probability

# What is the probability of a two coming up in one roll of the dice?

## Answer

###### Wiki User

###### September 11, 2008 9:11PM

The probabilility is 1 in 6 or 0.167

## Related Questions

###### Asked in Probability

### What is the addition rule of probability?

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.

###### Asked in Probability

### What is the probability that if you roll the dice you'll get the number 100?

That depends on what kind of dice you are rolling and how many
of them you roll. If you roll two 6-sided dice once, the
probability of getting the number 100 is exactly zero. You cannot
get a 100 on one roll of two 6-sided dice. Other dice and different
numbers of them may yield different probabilities.

###### Asked in Math and Arithmetic, Statistics, Probability

### What is the probability of rolling a five with a pair of dice?

There are 36 possible outcomes when we roll a pair of dice.
Rolling a five can be done the following ways: 3-2, 4-1, 2-3 and
1-4. That's four ways to roll a five with one roll of the dice. The
odds of rolling a five are 4 in 36, or 1 in 9. That makes the
probability of rolling a five equal to 0.11111....
We know that the probability of something is a ratio of
the number of times it can be done to the total number of things
that are possible. Probabilities range from zero to one, inclusive.
If something has a probability of zero, it cannot happen.
Like rolling a 13. A 13 cannot be rolled with one roll of a
pair of standard dice. Thus the probability of rolling a 13 is
zero, as it cannot happen.
If something has a probability of one, it must happen.
Like the probability of rolling an odd or an even number with one
roll of a pair of dice. Since any number we roll must be either odd
or even, then the probability of rolling an odd or an even number
with one roll of a pair of dice is one. An odd or an even number
must turn up, and that is why the probability of rolling an
odd or an even number with one roll of the dice is one. Lastly,
we've seen that the probability of rolling a given number with one
roll of the dice is the number of times that number might appear
divided by the total number of possibilities that might appear.

###### Asked in Math and Arithmetic, Statistics, Probability

### If 11 is the sum and you roll two dice what is the probability of getting 11 if you toss the dice 54 times?

The probability of getting 11 with one throw of 2 dice is
1/6*1/6*2 = 1/18
So the probability of not getting 11 with 1 throw of the dice is
17/18.
Tossing the dice 54 times, the probability of not getting 11 54
times is (17/18)54 = 0.0456...
So the probability of at least 1 roll of 11 is 1 - 0.0456 =
0.954

###### Asked in Probability

### What is the probability that the a dice 2 is drawn if the two dice total is 5?

The probability, when the 2-dice total is 5, that one of the two
dice shows a two is 1/2. The probability that that die is selected
is 1/4.
The probability, when the 2-dice total is 5, that one of the two
dice shows a two is 1/2. The probability that that die is selected
is 1/4.
The probability, when the 2-dice total is 5, that one of the two
dice shows a two is 1/2. The probability that that die is selected
is 1/4.
The probability, when the 2-dice total is 5, that one of the two
dice shows a two is 1/2. The probability that that die is selected
is 1/4.

###### Asked in Math and Arithmetic, Statistics, Probability

### What is the probability of rolling a sum of 8 on at least one of two rolls of a pair of number cubes?

The probability of rolling a sum of 8 on one roll of a pair of
dice is 5/36.
The probability of not rolling a sum of 8 on one roll of a pair
of dice is 31/36.
The probability of rolling a sum of 8 twice on two rolls of a
pair of dice is
(5/36)(5/36) = (5/36)2 .
The probability of rolling first a sum of 8 and then rolling a
sum that is not 8 on the
second roll is (5/36)(31/36).
The probability of rolling a sum that is not 8 on the first roll
and rolling a sum of 8
in the second roll is (31/36)(5/36).
So The probability of rolling a sum of 8 at least one of two
rolls of a pair of dice is
(5/36)2 + (5/36)(31/38) + (31/36)(5/36) = 0.258487654... ≈
25.8%.

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