Mathematics Part-II

Book: Mathematics Part-II

Chapter: 13. Probability

Subject: Maths - Class 12th

Q. No. 4 of Exercise 13.1

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Evaluate P(A B), if 2P(A) = P(B) = 5/13 and P(A|B) = 2/5.

Given: and

……….(i)


We know that


By definition of conditional probability,



P(A B) = P(A|B) P(B)


……….(ii)


Now, P(A * B) = P(A) + P(B) – P(A B)




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