answersLogoWhite

0


Best Answer

All possible outcomes: 2,3,4,5,6,7,8,9,10,11,12

All possible outcomes that are prime: 2,3,5,7,11

All possible rolls that are one of these prime numbers:

--1-2-3-4-5-6

1.*.*....*....*

2.*....*....*...

3....*....*......

4.*....*.........

5....*..........*

6.*..........*...

So we count 15 possible ways to make a Prime number.

P = (# of correct outcomes) / (# of total possible outcomes)

P = 15 / (6*6) = 0.416667 or 5/12

User Avatar

Wiki User

15y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is the probability of rolling 2 dice whose sum is a prime?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What is the probability of two prime numbers when rolling two dice?

The probability of rolling two prime numbers on a standard pair of dice is 1 in 4, or 0.25. Take the probability of rolling a prime on one die, 3 in 6, or 1 in 2, or 0.5, and square it.


What is the probability of not rolling prime numbers on both dice?

It is 1/4.


What is the probability of rolling two numbers whose sum is 2 equal?

For 6 sided dice, there is only 1 way to get a 2: (1,1). There are 36 outcomes rolling 2 dice; so the probability of rolling two numbers whose sum is 2 is 1/36.


What is the probability of rolling a prime number on a 6 face dice?

If the numbers are 1 to 6, there are three prime numbers in that range, a probability of 50%.


What is the probability of rolling a prime number on a role of dice?

50% 1/2 0.5


What is the probability of rolling 2 dice whose sum is less than 5?

3/11


What is the probability of rolling a prime number on a six sided dice?

The probability is 1 out of two. The primes you can roll are 2,3, and 5.


Odds Rolling prime number sum with roll of two dice?

The probability is 5/12.


Probability of rolling doubles with two dice?

The probability of rolling doubles with two dice is 1 in 6, or about 0.167.


When rolling a pair of dice what is the probability of rolling two?

The probability is 1/36.


What is the probability of rolling a seven on a dice?

0% probability


When two dice are rolled what is the probability of not getting a sum of 12?

The probability of rolling 12 with 2 dice is 1 in 36. The probability of not rolling 12 with 2 dice is 35 in 36.