Question:-
There are two fair coins {P(Head)=P(Tail)=1/2} and a third biased coin where P(Head) = 1/4 and P(Tail)=3/4 . one coin is picked at random and tossed once and a Head is obtained. The probability that the coin tossed is one of the fair coin is
Option (A)
5/6
Option (B)
4/5
Option(C)
3/4
Option(D)
2/3
Correct Option:
(D)
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