I have the following probability assesment table

no.of blemishes-0,1,2,3,4,5

probability-0.34,0.25,0.19,0.11,0.07,0.04

I was trying to select an event A i.e more than 2 blemishes and event B which is 4 or fewer blemishes.

means P(A>=2) and P(B<=4) inorder to calculate P(A) & P(B)how should I approach?Do I need proceed thru binomial distribution?

Thanks In advance