A and B are mutually exclusive events. PA) = 0.50 and P (B) = 0.30. What is

PA or B) ?

P (A∪B) = 0.8

Explanation:

Given that,

A and B are mutually exclusive events such that,

P (A) = 0.5 and P (B) = 0.3

We need to find P (A or B). It means we need to find P (A∪B). If two events are mutually exclusive, P (A∩B) = 0. So,

P (A∪B) = P (A) + P (B) - P (A∩B)

Putting P (A) and P (B), we get:

P (A∪B) = 0.5+0.3-0

P (A∪B) = 0.8

So, the value of P (A or B) is 0.8