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Question 270004
JEE Mathematics · Easy

Probability: Addition rule MCQ

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Addition ruleEasyQuestion 270004

Question

If P(A) = 0.4, P(B) = 0.3, and A and B are mutually exclusive, then P(A ∪ B) is:
  1. A
    0.7
    Correct
  2. B
    0.12
  3. C
    0.1
  4. D
    1

Correct answer

0.7

Explanation

For mutually exclusive events: P(A ∪ B) = P(A) + P(B) = 0.4 + 0.3 = 0.7.

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