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NDA2019MathematicsProbabilityActual

If A, B, C are three events, then what is the probability that at least two of these events occur together?

Options

  1. AP ( A B )+ P ( B C )+ P ( C A )
  2. BP ( A B )+ P ( B C )+ P ( C A )- P ( A B C )
  3. CP ( A B )+ P ( B C )+ P ( C A )-2 P ( A B C )
  4. DP ( A B )+ P ( B C )+ P ( C A )-3 P ( A B C )

Correct answer

C. P ( A B )+ P ( B C )+ P ( C A )-2 P ( A B C )

Step-by-step solution

P ( A B )+ P ( B C )+ P ( A C )-2 P ( A B C )

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