How can you apply the addition rule and interpret the answer in terms of the model?

P(A or B) = P(A) + P(B)

if u have a dice and want to roll 1 or 2 
P(1) = 1/6
P(2) = 1/6

P(1 or 2) = 1/6 + 1/6 = 2/6 = 1/3 

Gotta be d the music of previous eras