In backgammon, one rolls a pair of two fair dice. The probability of getting a sum of 7 is
A) 3/36.
B) 4/36.
C) 5/36.
D) 6/36.
E) None of the answers are correct.

Question

Quizplus · Accepted Answer

The sum of 7 can be achieved with the following pairs: (1,6), (2,5), (3,4), (4,3), (5,2), and (6,1). There are 6 favorable outcomes out of 36 possible outcomes (each die has 6 faces, so 6*6=36 total outcomes), making the probability 6/36.

In Backgammon, One Rolls a Pair of Two Fair Dice