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A fair coin is  tossed repeatedly. If the tail appears on first four tosses, then the probability of the head appearing on the fifth toss equals (1998 - 2 Marks)
  • a)
    1/2
  • b)
    1/32
  • c)
    31/32
  • d)
    1/5
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A fair coin is tossed repeatedly. If the tail appears on first four to...
Th e even t that th e fifth toss r esults in a h ead is independent of the event that the first four tosses result in tails.
∴ Probability of the required event = 1/2.
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A fair coin is tossed repeatedly. If the tail appears on first four tosses, then the probability of the head appearing on the fifth toss equals (1998 - 2 Marks)a)1/2b)1/32c)31/32d)1/5Correct answer is option 'A'. Can you explain this answer?
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