SOLUTION: The events A and B are mutually exclusive. If P(A) = 0.4 and P(B) = 0.3, what is P(A or B)?

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Question 1150175: The events A and B are mutually exclusive. If P(A) = 0.4 and P(B) = 0.3, what is P(A or B)?
Answer by ikleyn(52872) About Me  (Show Source):
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If events are mutually exclusive, then  P( A or B) = P(A) + P(B) = 0.4 + 0.3 = 0.7.    ANSWER

Solved.