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If events X and Y are mutually exclusive, P(X) = 1/3 and P(Y) = 2/5,...

Mathematics
WAEC 1991

If events X and Y are mutually exclusive, P(X) = 1/3 and P(Y) = 2/5, P(X∪Y) is

  • A. o
  • B. 2/15
  • C. 4/14
  • D. 11/15
  • E. 1
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Correct Answer: Option D
Explanation

P(X \(\cup\) Y) = \(\frac{1}{3} + \frac{2}{5}\)

= \(\frac{11}{15}\)


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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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