Two number cubes are rolled. what is the probability that the sum of the numbers rolled is either a 6 or an 8?

Let us assume that the cubes are numbered from 1 to 6 in their six faces.

When these two cubes are rolled, the possible values could be,

(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)

Total possibilities are 36.

Now the sum of the numbers are either 4 or 10. Those numbers are

(1,3) (2,2) (3,1) -> this sums to 6

(4,6) (5,5) (6,4) -> this sums to 8

Total possibilities of getting sum 4 or 10 is 6.

So, the possibility of getting sum of or from a pair of rolled cubes is

6/36 = 1/6

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depends on your school

when i was in high school i took ap biology my senior year and it was the hardest one for me because my teacher finished the material within the first month of school and then went on to doing advanced college level it was horrible. but at a nearby school ap biology was one of the easier aps. also, it depends on what you are interested i like math a lot so ap calculus was easier for me than most but i hate history so ap us government was harder for me than most.