P(B) = 0:8. Is it possible to say whether or not A and B are mutually exclusive? Justify

your answer.

I know that mutually exclusive means that its impossible for them both to occur at the same time.

Therefore I think that the answer is no, because the ratio of P(A) 0:4 and P (B) 0:8 would not be able to occur in both events but, Im not really sure how they got the ratio of 0:4 and 0:8 I just kinda guess on this one! I know how to figure it out if they gave you an A B and C but since they only gave you an A and B Im fairly confused.