Q. 595.0( 1 Vote )

If P(A) = 2|5, P( A. 5|6

B. 5|7

C. 25|42

D. 1


Answer :

We have,

P(A’|B’) × P(B’) = P(A’ B’)


P(B’|A’) × P(A’) = P(B’ A’)


On multiplying eq. (i) and (ii), we get

[P(A’ B’) = P[(A B)’]= 1 – P(A B)]

[Additive law of Probability]

Hence, the correct option is C

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