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COMEDK20269 May 2026Evening ShiftMathematicsProbabilityActual

If P(A B) = 0.85 , P(B) = 0.50 and P(A B) = 0.30 . Then P(A B') =

Options

  1. A0.55
  2. B0.35
  3. C0.65
  4. D0.2

Correct answer

B. 0.35

Step-by-step solution

Using the formula for the union of two events: P(A B) = P(A) + P(B) - P(A B) 0.85 = P(A) + 0.50 - 0.30 P(A) = 0.65 The probability of occurrence of only A is given by: P(A B') = P(A) - P(A B) P(A B') = 0.65 - 0.30 = 0.35 Answer: 0.35

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