Mathematics Part-II

Book: Mathematics Part-II

Chapter: 13. Probability

Subject: Maths - Class 12th

Q. No. 5 of Exercise 13.1

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If P(A) = 6/11 , P(B) = 5/11 and P(A B) = 7/11, find

(i) P(AB) (ii) P(A|B) (iii) P(B|A)

Given:

(i) We know that P(A * B) = P(A) + P(B) – P(A B)


P(A B) = P(A) + P(B) P(A B)




(ii) Now, By definition of conditional probability,





(iii) Again, By definition of conditional probability,





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