Question

Events A and B are disjoint. Find P(AorB) when P(A) = 0.55 and P(B) = 0.2

P (A or B)=

Answer 1

Answer:

0.75 = P(A or B)

Step-by-step explanation:

Since the events are disjoint, we can find the probability of one or the other occurring merely by adding P(A) and P(B):  0.55 + 0.2 = 0.75 = P(A or B)