Answer :
Answer:
For mutually exclusive events, P(A or B) = 0.7
Step-by-step explanation:
P(A) = 0.4
P(B) = 0.3
Here, A and B are mutually exclusive events.
⇒ A ∩ B = Ф
P(A ∩ B) = 0
So, P(A or B) = P(A) + P(B) - P(A ∩B)
= 0.4 + 0.3 - 0
= 0.7
⇒ P(A or B) = 0.7
Hence, for mutually exclusive events, P(A or B) = 0.7