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If the probability of an event occurring is x, what is the probability of the...

Mathematics
WAEC 2007
If the probability of an event occurring is x, what is the probability of the event not occurring?
  • A. 1 - x
  • B. x - 1
  • C. 0
  • D. \(\frac{1}{x}\)
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Correct Answer: Option A
Explanation
If p is the probability of an event happening(occurring) and the probability of an event not occurring is p1 then p + p1 = 1

p1 = 1 - p

x1 = 1 - x
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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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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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