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JEE Advanced 2023 · Paper 2

JEE Advanced 2023 Mathematics question on Probability

Consider an experiment of tossing a coin repeatedly until the outcomes of two consecutive tosses are same. If the probability of a random toss resulting in head is 13\dfrac{1}{3}, then the probability that the experiment stops with head is
  1. A.
    13\dfrac{1}{3}
  2. B.
    521\dfrac{5}{21}
  3. C.
    421\dfrac{4}{21}
  4. D.
    27\dfrac{2}{7}
Show answer

Correct option: B

[JEE Advanced 2023 · Paper 2]

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