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If the probability that an event will occur is p and the probability that it…

If the probability that an event will occur is p and the probability that it will not occur is q, which of the following is true?
  • A.
    p-q=1
  • B.
    q-p=0
  • C.
    p+q=1
  • D.
    p+q=0
Correct Answer: Option C
Explanation