Question

Given P(A0 = .4 and P(B) = .2 and the P(A and B) = 0, what is the probability of A or B>

A: .2
B: .6
C: 0
D: 1

Answer 1

.2 would be the correct answer I believe.

Explanation:

Probability of A or B Independent

Formula for the probability of A and B (independent events): p(A and B) = p(A) * p(B). If the probability of one event doesn't affect the other, you have an independent event. All you do is multiply the probability of one by the probability of another.

If i'm wrong please don't say anything I haven't learned this stuff yet. :)