A "double" in a roll of a pair of dice is having two of the same number showing. The only doubles for a pair dice have the sums 2,4,6,8,10,12. So there is No outcome to satisfy the conditions. The probability is 0.

# If Two Fair Dice Are Rolled, Find The Probability That The Roll Is A Double Given That The Sum Is 11?

The sum will be even for any double.

The probability that it is a double with a sum of 11 is

The probability that it is a double with a sum of 11 is

**zero**(0).ِA fair dice is rolled find the probability of getting 1- a prime number. 2- number 0. 3- an even number. 4- an odd number. Number 6.