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Probability – 22

22. A coin is tossed until a head appears or until the coin has been tossed five times. If a head does not occur on the first two tosses, then the probability that the coin will be tossed 5 times is :

(a) 1/2
(b) 3/5
(c) 1/4
(d) 1/3

Answer : (c)

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