ProbabilityHard
Question
A fair coin is tossed repeatedly. If tail appears on first four tosses, then the probability of head appearing on fifth toss equals
Options
A.

B.

C.

D.

Solution
The event that the fifth toss resolts in a head is independent of the event that the first four tosses result in tails.
∴ Probability of the requird event = 1 / 2
∴ Probability of the requird event = 1 / 2
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