Suppose you roll two die. What is the probability of rolling a seven?

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Answer 1 · 2017-04-07T04:22:11

#6/36=1/6#

There are a total of 36 possible rolls on a set of 2 fair 6-sided dice:

#6xx6=36#

Out of that 36, how many can be a 7?

We can get a 7 with these roles:

#(1,6),(2,5),(3,4),(4,3),(5,2),(6,1)# - 6 ways

So the probability of rolling a 7 is:

#6/36=1/6#