Which of the following is INCORRECT if E and F are independent?

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AAI ATC Junior Executive 25 March 2021 Official Paper (Shift 2)
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  1.  Where 

Answer (Detailed Solution Below)

Option 4 :  Where 
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Detailed Solution

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Explanation:

  • Two events are said to be independent if the occurrence of one does not depend on the occurrence of the other.
  • Or, P(A/B) = P(A) , P(A) ≠ 0   → (ii) and (iii) are TRUE

P(A/B) = P(A ∩ B)/P(B) = P(A) 

⇒    → (i) is TRUE

  • Here, option (iv) is FALSE as in , P(F) can be zero.
  • So, the correct answer is option 4.

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