Two dice are rolled. Find the probability of P(sum of 4 or rolling doubles)

Here are all possible rolls:  Count them, there are 36

(1,1) (1,2) (1,3) (1,4) (1,5) (1,6)

(2,1) (2,2) (2,3) (2,4) (2,5) (2,6)

(3,1) (3,2) (3,3) (3,4) (3,5) (3,6)  

(4,1) (4,2) (4,3) (4,4) (4,5) (4,6)  

(5,1) (5,2) (5,3) (5,4) (5,5) (5,6)

(6,1) (6,2) (6,3) (6,4) (6,5) (6,6)

Step-by-step explanation:

Rolling 2 dice gives a total of 36 possible outcomes.

Here is the sample space when we roll 2 dice:

look a the sides they are perpendicular