A fair coin is tossed until a head comes up for the first time. Find the probability of this happening on an odd-numbered toss.
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4 marks, −1StatisticsProbability and Bayes' theoremRepeated trials: binomial and geometric probabilitiesEasyabout 2 min
DSE 2021 Question 48: Probability and Bayes' theorem
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A fair coin is tossed until a head comes up for the first time. Find the probability of this happening on an odd-numbered toss. (A) 1/2 (B) 1/3 (C) 2/3 (D) 3/4
Probability and Bayes' theorem has come up 190 times in 7 exams since 2004.
What this question tests
This question is on Repeated trials: binomial and geometric probabilities, part of Probability and Bayes' theorem in Statistics.
Probabilities from independent repeated experiments.
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