JAMB Mathematics 2023 Objective — Question 35
Question 35 of 40 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2023 Objective paper, with the correct answer and a full explanation.
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The probability that event A occurs is 1/2 and the probability that event B occurs is 1/3. What is the probability that only one of them occurs?
- A. 1/3
- B. 1/6
- C. 1/2Correct
- D. 2/3
Explanation
P(only one)=P(A)P(B')+P(B)P(A')=(1/2)(2/3)+(1/3)(1/2)=1/3+1/6=1/2.
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