If A and B are mutually exclusive events with P(A) = 0.2 and P(B) = 0.6, then find P(A ∪ B).

Solution:

Given A and B are mutually exclusive events

P(A) = 0.2 ; P(B) = 0.6

We know P(A ∪ B) = P(A) + P(B) - P(A ⋂ B)

But P(A ⋂ B) =0

P(A ∪ B) = P(A) + P(B)

= 0.2 + 0.6

= 0.8

P(A ∪ B) = 0.8

If A and B are mutually exclusive events with P(A) = 0.2 and P(B) = 0.6, then find P(A ∪ B).

Summary:

If A and B are mutually exclusive events with P(A) = 0.2 and P(B) = 0.6, then P(A ∪ B) is 0.8.