ISRO Mechanical & Aerospace 2012 - Question 34

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The probability that A happens is 1/3. The odds against happening of A are

  • A. 2 : 1
  • B. 3 : 2
  • C. 1 : 2
  • D. 2 : 3

Answer: A. 2 : 1

Explanation: P(not A) / P(A) = (2/3) / (1/3) = 2.

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